Interesting question.
I don't think I'd live in one place. If I had the budget I'd have homes all over the place. I love Monte Carlo & Ibiza (summer on the Mediterranean really can't be beat). I love Paris & Amsterdam in late spring. Skiing the Alps in Winter is a blast, but I also love Hawaii, Vegas, New Orleans & New York City. I'd probably spend a short time at each of those places and base a lot on the expected weather. Never been to China, Japan or Asia in general, so I'd probably spend some time in Hong Kong, Macau, Singapore or Thailand and see what's that all about.
With a budget - probably Vanuatu.