I have to say Mexican / Tex-mex is my favorite, but I will try anything once. I also try and find interesting ethnic recipes to try at home even if I've never had the dish to begin with. The best thing I've made so far is Puerco Pibil which is a great slow roasted pork, here's the recipe

Puerco Pibil

Don't be afraid of the Habanero, the rest of the marinade really dulls it down. I take out most of the seeds but still leave a few and end up with a real nice spice, not too hot but enough of a kick for my taste.