Sacrificial Captives: 26
Ingenuity: 13
Phoenician Heritage: 20
Art of War: 25
Sun Never Sets: 21
Ancien Regime: 16
Hellenic League: 18
Great Andean Road: 29
Scholars of the Jade Hall: 18
Dutch East India Company: 17
Achaemenid Legacy: 29
The Glory of Rome: 15
Siberian Riches: 14
Nobel Prize: 27
Phoenician Heritage - I generally don't like coastal cities, they tend to be the weakest link for me, both for poorer production and for the fact that they are exposed to land -and- sea. I also don't like forgoing building roads in order to see an economic benefit, roads are always useful, for workers, for your own units moving from city to city, doing without roads in order to exploit the free harbour traderoutes creates a weakness in your empire. I also for similar reasons dislike attempting to exploit the free harbour traderoutes by building long coastal empires - long coastal empire with no road connections between.. well, that's a surefire way to -lose- cities to the AI, being coastal means -all- of your cities are potential targets of AI aggression, where normally you would expand in a circular way to shield cities in the back. Without roads, with a long stretching empire you are going to be hardpressed to defend yourself, especially as your horseman has been replaced by an overpriced slowmoving gimmicky elephant unit. Now, if Carthage had obtained a range-firing trireme replacement, they would be set! if they had the dromon instead of the quinquireme they would be probably one of my favourite civs, since the dromon can completely protect any coastal city, to devastating effect. But sadly, the dromon was wasted on the Deity/Immortal-useless Byzantines, where 75% of the time you don't even get to use your UA.
Nobel Prize - flavour, fun, those are really the main reasons I upvote this. I haven't managed to make it late game yet with Sweden, but I imagine like all diplomatic-based civs I might become entirely frustrated if I did. Coup-spam is out of control, especially on higher levels, so I'm not even sure having 300+ influence with a city state would cut it, to hold on and there would be nothing more frustrating than losing great people that you gifted -and- any gold you spent, not to mention invested yourself in a patronage tree strategy - all wasted beacuse the AI is coup-crazy and always seems successful at it. On the other hand, this UA still comes in handy early game, where no spies are around to mess things up and this sets you up for a very powerful early game, the friendship thing could be leveraged as well, if you play large maps.