It all depends on what it's the favourite for:
- Favourite place to live = Wellington, New Zealand (where I live now, and never want to leave)
- Favourite place for a laid back, doing nothing holiday = Kuratau on the W side of Lake Taupo, New Zealand. There are probably lots of better places that I haven't been to, but this one is only 5 hours drive away, which makes the holiday even more relaxing.
- Favourite place for an action packed holiday = Las Vegas (went there April this year)
I haven't actually been to that many places outside NZ, if I had, maybe my choices would be different.