Avatar, all the way. I would do the whole Jake Sully thing of stabbing humanity in the back and running off to join the Na'vi, so then i get to see how much better it is than our current day dystopian corporate apocolypse world. Beautiful landscape, beautiful people with a beautiful culture, language and set of traditions (except for the psychadelic stabby scorpion thing but hey, no good thing comes without paying some kind of piper.
Either that, or teh Star trek Universe, probably in post Dominion war Cardasia. The Cardassians are frigging awesome(when thier not murdering everyhting that is but what do you want, they're basically space nazis) that, and aside from some minor empire building (not so minor to the Bajorans but seriously, fuck the bajorans), the Cardassians seem to put a lot of stock into parts of life i think are important, like family home and honour. And hey, if it doesn't work, DS9 is located conveniently close to Cardassian space so i;ll just nip over there instead.