So, today I've finally completed my goal of achieving all the UHVs in the unlocked 3000 BC start on Viceroy (which is actually hardly 'settler equivalent', as I've read somewhere, but I digress). So I thought I'd write down some thoughts on the UHVs' difficulty/experiences with them, plus toss in the screenshots of settled cities.
Greece
Difficulty assessment: Very Easy
This was my first one, as I got inspired to give RFC a chance by Neal's KOTW RFC Greek game. Very easy, as you're likely to catch Egypt without metal, and with all the land and production, plus with multiple marbles and coppers, it's been no problem at all to get both the tech and wonder goals done. Then just a beeline to optics and quick circumnavigation.
Egypt
Difficulty assessment: Easy
Aside from the first goal, not problematic at all.
India
Difficulty assessment: Very Hard
Founding 5 religions is extremely painful - you have to go for Judaism first, and still aren't guaranteed to get it. The Chinese religions are a lost cause, and forcing out enough GPs to bulb Divine Right ain't easy either, especially since you also need to expand for the population goal (which can be thwarted by untimely plague, as it happened to me the first time I managed to get the 5 bloody religions). Very luck dependent. And yes, I heard about an exploit involving warriors and China that makes it much easier, but that's just silly.
China
Difficulty assessment: Very Easy
Just spread a bit of religion, build The Great Wall and spam units. Nothing much to see there.
Babylon
Difficulty assessment: Easy
It's possible (though unlikely) to miss the techs. Otherwise, no problem at all. Basically an OCC.
Persia
Difficulty assessment: Medium
The area goal is the main hurdle to overcome. One basically has to kill both India and Egypt (which also generally works for the shrines), which is quite ahistorical. Wonders can pose a minor problem, if Babylon/India/Egypt haven't been wonderspamming enough.
Carthage
Difficulty assessment: Easy
Outside of taking out Egypt and whoever controls the dyes in Phoenicia, the only challenge here are the barbs.
Rome
Difficulty assessment: Medium
...once one knows about what exactly one has to do to get the Western Roman Empire goal it's actually easy. I didn't know it, actually, and tried hard to cover every tile of WRE with Roman culture. The rest ain't much, TGW owns the barbs.
Japan
Difficulty assessment: Trivial
Outside the ultimate boredom that finishing the tech tree entails, this UHV is absolutely no challenge at all. At worst you'll overexpand like I did, and still win.
Ethiopia
Difficulty assessment: Pure Horror
By far the hardest UHV of them all. Namely, the found a religion goal. Unless you get very, very, very lucky, you won't win Theo, and winning DR is basically impossible. But once you manage the miracle, the other goals are easy.
Maya
Difficulty assessment: Hard
I got lucky when the Dutch conquerors spawned on Jamaica, rendering them utterly useless. Had they spawned near a city, it would likely be nigh impossible to hold it. For the first two goals, one needs a specific research path and to start the temple ASAP, but it's not too hard.
Vikings
Difficulty assessment: Medium
Took me looong time to realize that the quintuple gold is from PILLAGING, not conquering/razing. Once I got that and pillaged the hell out of collapsed Carthaginian and Roman lands, it was possible to get the goal. I completely ignored warring in Europe and conquered Aztec and Inca lands instead. Sinking ships may look daunting, but with no time limit, one just has to spam privateers once you can build them and eventually the win'll come.
Arabia
Difficulty assessment: Medium
Pure war. Taking out Egypt and India, plus forcing a single GP yields the shrine goal. Vassaling/killing Spain can be a problem since one needs galleys. Overconquering and collapse are also real dangers (well, maybe not if you don't spread Islam via conquest like I did).
Khmer
Difficulty assessment: Trivial
If you realize just how much 14k culture is, and don't underestimate it, there's no challenge at all. Just force out three GAs for the culture. City size and Buddhism are basically autocompleted goals.
Spain
Difficulty assessment: Hard
Keeping the other Europeans out is major PITA. Untimely Aztec/Inca resurgence can really screw things up as well. The maintenance costs and stability hits are enormous.
France
Difficulty assessment: Very Easy
A few GAs easily handle the Paris goal, and the rest is quite trivial - once you find out what exactly counts as colonizing Quebec and Louisiana...
England
Difficulty assessment: Very Easy
When you know the continent boundaries, it's trivial. When you don't, and settle Indonesian cities like I did, thinking they'll count as Asia... it's still easy. Having to found crap cities on Kamchatka etc. sucks and makes no historical sense, though.
Germany
Difficulty assessment: Hard
Aside from the tech tree bore, conquering Russia is stability nightmare. Razing cities hits stability just as hard as conquering (which is one of the things I was surprised to find out and think it makes no sense, razing a city != expansion), and I didn't know if Russia collapses and you have a city or two in there, you get the goal, so I had to avoid collapsing, which was very hard. The conquests outside of Russia are easy though.
Russia
Difficulty assessment: Easy
Basically settler spam.
Netherlands
Difficulty assessment: Easy
The map goal is probably failable (though I didn't fail it here). Spices are the hardest part, since a) you can't trade for spices if you already have your own, unless trading with vassal; and b) improving the one-tile spices in Carribean doesn't count, one has to settle atop them; and c) Portugal tends to steal the Brazilian spices fast. Not particularly hard, though, Javan, Papuan and Madagascar spices are easy to grab...
Mali
Difficulty assessment: Hard
It's possible to fail the first goal even if one turns off research right off the bat... Even once past the first, the third goal is troublesome and requires several GMs to achieve. I've never had slider above 0% at all in this one.
Portugal
Difficulty assessment: Easy
I actually failed the map goal on first try (it was quite absurd game, Khmers were the first to reach Americas and won the map too). But generally, it's really easy, the settler spam and OBs are quite trivial.
Inca
Difficulty assessment: Medium
It's surviving the bloody conquerors that's hard. Takes a lot of longbows in right place and time. The rest is rather easy, just spam gold after first goal and get a GM for the second goal, then if Spain actually settles in Argentina, take them out (you should be able to settle Venezuela and Guayanas before any Europeans have Astronomy).
Mongolia
Difficulty assessment: Very Hard
The extreme expansion without collapse ain't easy at all. Abusing GA bombs in remote, crappy desert areas helps a lot, but my stability was pure crap all the game. For the razing goal, I actually had to wait for Persia and Ethiopia to collapse, and raze the hell out of the barbs and independents. What makes it actually very hard however is the fact that China was always there whenever I tried, and always had bloody PIKES. The one time I finished the UHV China still had pikes, but was in midst of a plague. I'm not sure if I could pull it off otherwise. Oh and I never saw the UP take effect (but then as I said, I didn't really use razing).
Aztec
Difficulty assessment: Medium
Once again, surviving conqs is the problem. OTOH they help in the enslavement goal. I have been a bit too slow settling islands and Spain snuck a horrible pseudocity on Jamaica, which I had to raze and resettle on Cuba...
Turkey
Difficulty assessment: Trivial
You start with enough military to easily overrun Greece, if it still lives. Probably one of the most fun games, easy expansion into Greece/indeps/barbs. I guess some might say getting vassals ain't easy, but I never found it hard - in fact I always get a ton of vassal proposals with any civ except Mali/Maya/Aztec/Inca anyway. I think I had five as Turkey, and could've had even more.
America
Difficulty assessment: Medium
Not that easy to kick Europeans out, as you'll be behind in tech for quite some time. The oil goal was also a major pain, as it led to a war against half the world - I took Persia as vassal, and they warred Russia, Japan & Portugal & all their vassals. And once I made peace, the demeneted Persia actually had the gall to collapse, forcing me to fight indeps for oil and take huge stability hits. Urghble.
Greece
Spoiler :
Difficulty assessment: Very Easy
This was my first one, as I got inspired to give RFC a chance by Neal's KOTW RFC Greek game. Very easy, as you're likely to catch Egypt without metal, and with all the land and production, plus with multiple marbles and coppers, it's been no problem at all to get both the tech and wonder goals done. Then just a beeline to optics and quick circumnavigation.
Egypt
Spoiler :
Difficulty assessment: Easy
Aside from the first goal, not problematic at all.
India
Spoiler :
Difficulty assessment: Very Hard
Founding 5 religions is extremely painful - you have to go for Judaism first, and still aren't guaranteed to get it. The Chinese religions are a lost cause, and forcing out enough GPs to bulb Divine Right ain't easy either, especially since you also need to expand for the population goal (which can be thwarted by untimely plague, as it happened to me the first time I managed to get the 5 bloody religions). Very luck dependent. And yes, I heard about an exploit involving warriors and China that makes it much easier, but that's just silly.
China
Spoiler :
Difficulty assessment: Very Easy
Just spread a bit of religion, build The Great Wall and spam units. Nothing much to see there.
Babylon
Spoiler :
Difficulty assessment: Easy
It's possible (though unlikely) to miss the techs. Otherwise, no problem at all. Basically an OCC.
Persia
Spoiler :
Difficulty assessment: Medium
The area goal is the main hurdle to overcome. One basically has to kill both India and Egypt (which also generally works for the shrines), which is quite ahistorical. Wonders can pose a minor problem, if Babylon/India/Egypt haven't been wonderspamming enough.
Carthage
Spoiler :
Difficulty assessment: Easy
Outside of taking out Egypt and whoever controls the dyes in Phoenicia, the only challenge here are the barbs.
Rome
Spoiler :
Difficulty assessment: Medium
...once one knows about what exactly one has to do to get the Western Roman Empire goal it's actually easy. I didn't know it, actually, and tried hard to cover every tile of WRE with Roman culture. The rest ain't much, TGW owns the barbs.
Japan
Spoiler :
Difficulty assessment: Trivial
Outside the ultimate boredom that finishing the tech tree entails, this UHV is absolutely no challenge at all. At worst you'll overexpand like I did, and still win.
Ethiopia
Spoiler :
Difficulty assessment: Pure Horror
By far the hardest UHV of them all. Namely, the found a religion goal. Unless you get very, very, very lucky, you won't win Theo, and winning DR is basically impossible. But once you manage the miracle, the other goals are easy.
Maya
Spoiler :
Difficulty assessment: Hard
I got lucky when the Dutch conquerors spawned on Jamaica, rendering them utterly useless. Had they spawned near a city, it would likely be nigh impossible to hold it. For the first two goals, one needs a specific research path and to start the temple ASAP, but it's not too hard.
Vikings
Spoiler :
Difficulty assessment: Medium
Took me looong time to realize that the quintuple gold is from PILLAGING, not conquering/razing. Once I got that and pillaged the hell out of collapsed Carthaginian and Roman lands, it was possible to get the goal. I completely ignored warring in Europe and conquered Aztec and Inca lands instead. Sinking ships may look daunting, but with no time limit, one just has to spam privateers once you can build them and eventually the win'll come.
Arabia
Spoiler :
Difficulty assessment: Medium
Pure war. Taking out Egypt and India, plus forcing a single GP yields the shrine goal. Vassaling/killing Spain can be a problem since one needs galleys. Overconquering and collapse are also real dangers (well, maybe not if you don't spread Islam via conquest like I did).
Khmer
Spoiler :
Difficulty assessment: Trivial
If you realize just how much 14k culture is, and don't underestimate it, there's no challenge at all. Just force out three GAs for the culture. City size and Buddhism are basically autocompleted goals.
Spain
Spoiler :
Difficulty assessment: Hard
Keeping the other Europeans out is major PITA. Untimely Aztec/Inca resurgence can really screw things up as well. The maintenance costs and stability hits are enormous.
France
Spoiler :
Difficulty assessment: Very Easy
A few GAs easily handle the Paris goal, and the rest is quite trivial - once you find out what exactly counts as colonizing Quebec and Louisiana...
England
Spoiler :
Difficulty assessment: Very Easy
When you know the continent boundaries, it's trivial. When you don't, and settle Indonesian cities like I did, thinking they'll count as Asia... it's still easy. Having to found crap cities on Kamchatka etc. sucks and makes no historical sense, though.
Germany
Spoiler :
Difficulty assessment: Hard
Aside from the tech tree bore, conquering Russia is stability nightmare. Razing cities hits stability just as hard as conquering (which is one of the things I was surprised to find out and think it makes no sense, razing a city != expansion), and I didn't know if Russia collapses and you have a city or two in there, you get the goal, so I had to avoid collapsing, which was very hard. The conquests outside of Russia are easy though.
Russia
Spoiler :
Difficulty assessment: Easy
Basically settler spam.
Netherlands
Spoiler :
Difficulty assessment: Easy
The map goal is probably failable (though I didn't fail it here). Spices are the hardest part, since a) you can't trade for spices if you already have your own, unless trading with vassal; and b) improving the one-tile spices in Carribean doesn't count, one has to settle atop them; and c) Portugal tends to steal the Brazilian spices fast. Not particularly hard, though, Javan, Papuan and Madagascar spices are easy to grab...
Mali
Spoiler :
Difficulty assessment: Hard
It's possible to fail the first goal even if one turns off research right off the bat... Even once past the first, the third goal is troublesome and requires several GMs to achieve. I've never had slider above 0% at all in this one.
Portugal
Spoiler :
Difficulty assessment: Easy
I actually failed the map goal on first try (it was quite absurd game, Khmers were the first to reach Americas and won the map too). But generally, it's really easy, the settler spam and OBs are quite trivial.
Inca
Spoiler :
Difficulty assessment: Medium
It's surviving the bloody conquerors that's hard. Takes a lot of longbows in right place and time. The rest is rather easy, just spam gold after first goal and get a GM for the second goal, then if Spain actually settles in Argentina, take them out (you should be able to settle Venezuela and Guayanas before any Europeans have Astronomy).
Mongolia
Spoiler :
Difficulty assessment: Very Hard
The extreme expansion without collapse ain't easy at all. Abusing GA bombs in remote, crappy desert areas helps a lot, but my stability was pure crap all the game. For the razing goal, I actually had to wait for Persia and Ethiopia to collapse, and raze the hell out of the barbs and independents. What makes it actually very hard however is the fact that China was always there whenever I tried, and always had bloody PIKES. The one time I finished the UHV China still had pikes, but was in midst of a plague. I'm not sure if I could pull it off otherwise. Oh and I never saw the UP take effect (but then as I said, I didn't really use razing).
Aztec
Spoiler :
Difficulty assessment: Medium
Once again, surviving conqs is the problem. OTOH they help in the enslavement goal. I have been a bit too slow settling islands and Spain snuck a horrible pseudocity on Jamaica, which I had to raze and resettle on Cuba...
Turkey
Spoiler :
Difficulty assessment: Trivial
You start with enough military to easily overrun Greece, if it still lives. Probably one of the most fun games, easy expansion into Greece/indeps/barbs. I guess some might say getting vassals ain't easy, but I never found it hard - in fact I always get a ton of vassal proposals with any civ except Mali/Maya/Aztec/Inca anyway. I think I had five as Turkey, and could've had even more.
America
Spoiler :
Difficulty assessment: Medium
Not that easy to kick Europeans out, as you'll be behind in tech for quite some time. The oil goal was also a major pain, as it led to a war against half the world - I took Persia as vassal, and they warred Russia, Japan & Portugal & all their vassals. And once I made peace, the demeneted Persia actually had the gall to collapse, forcing me to fight indeps for oil and take huge stability hits. Urghble.