My favorites in SE Asia: Cambodia, Indonesia and Laos. Many people say Vietnam, too, but I havent been there, ´cos the bloody w****rs wont let any foreign bikes enter!!
In all those countries, the friendliness of the people, despite their poverty and tough history, is something that makes you humble. All extremely beautiful places, too, with a huge list of things to see and do. And for a falang, cheap to travel.