I would have to say at this point there are many great TESOL jobs out there. The jobs in Asia and such countries as Turkey, Saudi Arabia offer great opportunities and pay. On the other hand countries such as Argentina and other ones in South America are a real delight to teach in. I taught in Argentina and had a lot of fun there, the students were nice, the weather was great (southern hemisphere summer), and the food was delicious! The only drawback is the pay is less in Argentina and Brazil. Ive also become aware of the huge growing market for TESOL in China and India. There is an article about this that I have read just recently, heres the link if youre interested:

http://www.eslfocus.com/articles/teaching_english_overseas_a_robust_job_market-513.html

GOOD LUCK!