Reside: Auckland or Barcelona, as long as I can make a living there and be in solid with a like-minded group of locals.
Vacation: Lago Atitlán or Lombok & the Gilis. I've never been to an island in Oceania, so Indonesia is as close as I've experienced. Atitlán is tough to beat as it's in reach to Xela, Chichi, and the much more touristy Antigua. Plus volcano hikes, kayaks, and lots of yoga spots. Good food, great people, and low cost. I wish only two things: more power to the Campesinos (particularly solar power and less cow dung heating), and fewer military-types on their gap-year.
Party: Seoul, as nostalgia. Or, if I had an unlimited budget, a Berlin, Amsterdam, Prague loop. I'm old. I deserve parties at whichever impact level I choose on that day.