If I could ultimately make my own choice, I'd be neither.
The Luxons are, in my opinion, more like crooneys*/pirate hybrids than cool rebels. I don't really like pirates and they're capital is just way too gypsie-ish for me. I don't have anything against gypsies, but I don't exactly find it cool.
The Jade Sea is, as mentioned, awesome. It looks great and it's not as horribly gloomy as the Petrified Forest. Though I don't like turtles...
The Kurzicks have great buildings and the forest is super cool if it didn't lack "nice" spots as much as it does. My character fits better into this forest, but I still wish for some more clearings with atleast a TAD of sunshine.
Also, I do NOT like the concept of religious zealots and they may be slightly too gothic (eventhough the armor/weapons they have ROCKS, hands down) for me. However, it's just a game so the religion-thing doesn't really get me down and I'm not exactly forced to stay in the gothic capital all the time; I can just travel somewhere else.
The choice will definately be Kurzick with the armor, weapons and badass, albeit gloomy, forest. But I'd rather live in the forest by myself, visiting the Kurzicks from time to time, buying armor and supplies before going to, I dunno, the Jade Sea and visit the Luxons and their turtles.
I must have some commitment problems... I can't even be in a guild without feeling weird. That's why I don't have one.
*Crooneys: I'm not sure if that's the right word AT ALL, so correct me if I'm wrong when I say crooneys are, like, gypsies who try to steal your money while you're looking at a cheap necklace? I have the right word in Danish, but I don't know if crooney is right. Cut some slack
