Tomice
Passionate Smart-Ass
Disclaimer:
Before I continue my review of the Leader changes: Thal, you do an awesome job! If my review sounds a bit harsh, then only because continuously exclaiming how cool all those ideas are wouldn't help much in improving the game
So sorry if I focus a bit on the open questions and possible pitfalls!
Japan
Fully focused on combat, but the bonuses can be used for defense just as well. Good for players who want "pure", unchanged economic gameplay. Overall strong, and versatile/interesting enough.
Korea
Very similar to Sweden, forced to focus on one improvement (although all other civs use mostly Villages, so it's okay). Sweden gets mixed yield bonuses while Korea is purely about science, however - which one is better can only be said by testing. Overall, I find the extreme science boost very strong and also interesting (long research times and nothing interesting left to build is a very frustrating combination). If the bonuses on the Hwacha stay on upgrade, it might be very strong, since archers lose their range when upgraded.
Mongolia
The two UU were always consider very strong and interesting, nothing changed here. The new UU sure sounds more interesting than vanilla, so no doubt this is going to be a favourite again!
Ottomans
A wide economy bonus that can easily be balanced and is a bit more interesting/unique than usual - cool. The Janissary doesn't seem overly special (just having 2 free promotions), but the barbary port is surely the better version of the Sea Beggar. The polder is stronger than the Janissary, however. Overall also a bit comparable to Carthage, which might be the more well-rounded Civ.
Persia
I like how golden ages change your movement speed, so we "feel" the different "seasons" better. Otherwise, golden ages just improve a few numbers and turn counters, which is not as emotional. It might help the uniqueness of the Civ if we increased the difference between golden age and standard gameplay for them. Maybe an additional combat bonus or extra sight for units? Or a triggered opportunity at the beginning of each golden age?
Polynesia
"THE" naval civ before mid/lategame. However, they're more about avoiding and invulnerability than anything else. A human player can surely pull of a few crazy things, like creating unattackable overseas colonies or hit&run tactics with his navy. Not sure if the AI will use the UA well. I still don't think they're oerpowered (except on terra maps), since naval exploration still takes a lot of ressources and we can't remove our capital from the mainland where it'll still be vulnerable. Their UI helps both tall and wide empires, and early UU are always strong. With more social policies than many other civs and very creative settling patterns, they should be a lot of fun to play!
Rome
I have to say, I'm a bit disappointed that Rome has become so offensive now. I used to play them semi-peacefully a few times before, which would be a waste of the UA now. Then again, the forum is of way more use during peacetime than the ballista was, so they remain somewhat of an allrounder. Overall (considering all player types), they are more active, more focused and more interesting now, so I fully approve to the changes. They're only a bit less interesting for me personally now.
Russia
I think the switch of UA and UB effects was a very smart idea! Good job! I also think they've more than decent combat potential due to the UB. The UU is not as special, however.
Siam
The only CS-ally-oriented Civ remaining due to the reinvention of Greece, so they are definitively unique. Their UU and UB should maybe support the UA a bit more, however. The extra culture from the Wat is probably only good to fill the Patronage tree a bit faster. What about an UU that fights better on the territory of allied CS's?
Songhai
I like how their units play a bit differently than others. Mongolia is maybe even more interesting, but only during the age of Keshiks, while the Songhai bonus lasts longer. I'd change their UB to heal units - it would further change the combat experience and it would surely be more unique.
Spain
Very similar to Rome, but the Romans appear more versatile, and their UU/UB combo comes earlier than the Spanish UU's. Spain might need a bit better numbers on their UA to be competitive.
Summary of proposed changes:
Before I continue my review of the Leader changes: Thal, you do an awesome job! If my review sounds a bit harsh, then only because continuously exclaiming how cool all those ideas are wouldn't help much in improving the game

Japan
Fully focused on combat, but the bonuses can be used for defense just as well. Good for players who want "pure", unchanged economic gameplay. Overall strong, and versatile/interesting enough.
Korea
Very similar to Sweden, forced to focus on one improvement (although all other civs use mostly Villages, so it's okay). Sweden gets mixed yield bonuses while Korea is purely about science, however - which one is better can only be said by testing. Overall, I find the extreme science boost very strong and also interesting (long research times and nothing interesting left to build is a very frustrating combination). If the bonuses on the Hwacha stay on upgrade, it might be very strong, since archers lose their range when upgraded.
Mongolia
The two UU were always consider very strong and interesting, nothing changed here. The new UU sure sounds more interesting than vanilla, so no doubt this is going to be a favourite again!
Ottomans
A wide economy bonus that can easily be balanced and is a bit more interesting/unique than usual - cool. The Janissary doesn't seem overly special (just having 2 free promotions), but the barbary port is surely the better version of the Sea Beggar. The polder is stronger than the Janissary, however. Overall also a bit comparable to Carthage, which might be the more well-rounded Civ.
Persia
I like how golden ages change your movement speed, so we "feel" the different "seasons" better. Otherwise, golden ages just improve a few numbers and turn counters, which is not as emotional. It might help the uniqueness of the Civ if we increased the difference between golden age and standard gameplay for them. Maybe an additional combat bonus or extra sight for units? Or a triggered opportunity at the beginning of each golden age?
Polynesia
"THE" naval civ before mid/lategame. However, they're more about avoiding and invulnerability than anything else. A human player can surely pull of a few crazy things, like creating unattackable overseas colonies or hit&run tactics with his navy. Not sure if the AI will use the UA well. I still don't think they're oerpowered (except on terra maps), since naval exploration still takes a lot of ressources and we can't remove our capital from the mainland where it'll still be vulnerable. Their UI helps both tall and wide empires, and early UU are always strong. With more social policies than many other civs and very creative settling patterns, they should be a lot of fun to play!

Rome
I have to say, I'm a bit disappointed that Rome has become so offensive now. I used to play them semi-peacefully a few times before, which would be a waste of the UA now. Then again, the forum is of way more use during peacetime than the ballista was, so they remain somewhat of an allrounder. Overall (considering all player types), they are more active, more focused and more interesting now, so I fully approve to the changes. They're only a bit less interesting for me personally now.
Russia
I think the switch of UA and UB effects was a very smart idea! Good job! I also think they've more than decent combat potential due to the UB. The UU is not as special, however.
Siam
The only CS-ally-oriented Civ remaining due to the reinvention of Greece, so they are definitively unique. Their UU and UB should maybe support the UA a bit more, however. The extra culture from the Wat is probably only good to fill the Patronage tree a bit faster. What about an UU that fights better on the territory of allied CS's?
Songhai
I like how their units play a bit differently than others. Mongolia is maybe even more interesting, but only during the age of Keshiks, while the Songhai bonus lasts longer. I'd change their UB to heal units - it would further change the combat experience and it would surely be more unique.
Spain
Very similar to Rome, but the Romans appear more versatile, and their UU/UB combo comes earlier than the Spanish UU's. Spain might need a bit better numbers on their UA to be competitive.
Summary of proposed changes:
- Songhia mosques should heal units or give extra XP - more focused civ, more unique combat gameplay
- More "emotional" effect during golden ages for Persia - think how WC3 nightelf units are invisible during night - extra move is a good start
- More early faith for Byzantium - to assure they can regurarly found a religion and use their UA
- Later free Great general for China - to avoid that he's always coverted into a citadel for the yields