I've been to about 40 countries at present. In general... Been to most of Europe, love it, massive fan of Europe. South-East Asia is the ultimate backpacker experience, loved it too but if doing it, be prepared to be surrounded by youngsters. If you're 18-24, you'll be in heaven. If you're older than that, I was 30 when I did it (I started travelling late in life, sadly), youll have an amazing time but will find you gravitate more towards people in their late 20s of which there are still lots of cool people to meet, but a bit more limited compared to the gap-year kids. South America has a wider range of ages, and is fucking incredible. In October, I'm doing a further 9 countries in Europe. Then in February, Im returning to Central America to do 5 countries, visited Costa Rica and Panama in 2009. Cannot wait!!!