Most pizza is good for me. I'm into the Buffalo Chicken pizza they do around here. Spicy chicken with blue cheese crumbles, delicious.
Other basics I like are shrimp, black olives, tomato, spinach, artichoke, garlic, peppers (jalapeno, roasted red, green), mushrooms, asparagus. Pretty much any vegetable a place has except onion. Different kinds of cheeses are nice too; feta, bufalo mozzarella, etc. Fresh basil is a great too...
All pizza should be topped with some crushed red pepper, garlic powder, and Frank's hot sauce as well, it just makes it better.
Crust-wise, I guess standard New York style crust. Chicago style can be good on occasion, but it's not an often kind of pizza. Super thin crust is okay sometimes too.
Here is picture of my brother and some of the pizza we had in Italy. It was fantastic.
