I like thin crust, and for toppings, tomato, basil, calamari, caviar, lausage, pepperoni, anchovies, prawns, mussels, clams, chicken, beef, pretty much any meat and vegetable... I really don't think there's anything I don't like on it other than jalepeno peppers, but I never eat pizza with more than three ingredients on it because with more than that, it usually tastes bad.
I hate thick crust and a lot of cheese though.