Well... while i would like to know as many countries as possible, im almost sure i wont ever find a better place to live than my own country... there is no wars, no (strong) earthquakes, no (strong) hurricanes, the weather is very nice (even if a bit too hot sometimes), there is (still) plenty of food, water, forests...
And, well... i live in the so-called "Wonderful City"... everybody from other countries who comes here and knows it always wants to come back... so why i would ever want to leave here?