At the moment, I'm based between the UK and Jersey (Channel Islands – I'm resident for tax, which is nice), around Europe (recently Amsterdam, Berlin, Lisbon, back to NL in a few weeks) and planning a move onto South America later in the year. Previously it was Hong Kong, where the project began life.
From these, I got the best vibes in Berlin, and would love to spend more time there soon.
London, where most of my business took shape and which I'd consider my practical home, is fantastic for diversity of ideas, people and places. As of now I plan to spend 3 months per year here (maximum allowed unless I want to pay UK tax!) in the warmer months to really get into the city.
Still looking for the place, though, the one where I settle in for a year or two.