It used to be that Papa Del's was the only place in town for a really good artery clogging deep dish pizza. Now's there's Amano's. It's neither better or worse than PD's - just different. It really depends on your preference on which you prefer. In addition to the pizza the have some very very good other foods - the ravioli is excellent.
One other very important thing. They owners are the best. I would shop here just for them - even if their food were average (which it's not!).