Just about the only pizza toppings I don't like are peppers, olives, and sausage. Anything else I'm cool with, it just really depends on what I'm in the mood for - sometimes I may feel like I just want a simple plain cheese, but other times you can pile on the toppings for me.
Papa John's used to be my prefered pizza chain, but they've really gone down in quality in recent years, and their pizzas and services are really inconsistent anymore. I've kind of switched to Marco's, they're pretty good. Pizza Hut won't deliver to my area, and Jet's abandoned ship.