The Citadel from Mass Effect seems like a nice place to live, you've got criminals fighting in the hallways, bartenders at the strip club spying on you, giant and not so giant biotic machines wrecking up the place and trying to take it over, then there's monotonous bovine like beings, pretty trees, evangelical jellyfish, and if none of that appeals then you could always visit good old planet Earth. Oh wait, Earth is a crime infested shit bag now... at least you can still bang alien chicks, so of course I want to live there! (I really really really do not want to see a Krogan male or female naked in any way, that would have been an awkward and unsettling way to get the Paramour achievement.)