I haven't been to many places either!
For a relaxing vacation, my favorite so far is Mazatlan, Mexico. According to my family who have been to other parts of Mexico, it doesn't feel as touristy as some other places. Of course, when we went we didn't stay in a big fancy resort hotel, but a nice little place across the street from the beach. I could very well spend a few weeks just laying in the sun or shopping on the streets!
Oh, and it turns out that Mazatlan is where Cesar Milan was born and raised!