Rome, but largely because we went in July (invited to a wedding, not our choice of date) and it was hotter than the sun. I'm sure it's lovely when you can breathe, and step outdoors without being fully drenched in sweat.
LA. Only there a couple of days but saw nothing much to like about it.
Don't shoot me those who live there, but Manchester. Visited for the first time last year, have heard tons of brilliant things, but encountered several very angry shouty people (starting with our taxi driver from the station) and just felt a bit on edge all the time.
Sad about all these mentions of Bali, we're going there and to Singapore next month for the first time 