Plinky asked, “If you had to live in a large city for a year, which would you pick? What if you had to pick a big city in another country?”
I'd be happy to go live in Seattle or Boston for a year or maybe more, and even happier to try Toronto. San Francisco is on the list of places I'd like to try, too. All of the above have better transit systems than Atlanta as well as being in more liberal environments. The fact that there are other features to each city that make it incredibly attractive is great, too.