-If you haven't been abroad before, SEA will be much easier. I'd recommend that.
As far as many countries vs. one country, any experienced international player can tell you its to spend as little time traveling between cities as you can and as much time staying in one city as you can. A longer time in one city gives you more time to learn the city, find out the good places, and take the girl on as many dates as you need to in order to get the notch. Getting laid abroad is NOT easy. If you are serious about this, then schedule your trip such that you will make it happen.
As far as many countries vs. one country, any experienced international player can tell you its to spend as little time traveling between cities as you can and as much time staying in one city as you can. A longer time in one city gives you more time to learn the city, find out the good places, and take the girl on as many dates as you need to in order to get the notch. Getting laid abroad is NOT easy. If you are serious about this, then schedule your trip such that you will make it happen.