The now-defunct Showbiz Pizza. They all got converted to Chuck E Cheese, but I swear once they switched out the animatronic band featuring Showbiz and friends for that smiling rat in a vest and company, the pizza went downhill and we switch over to Mr Gatti's/Gattitown instead.
I'll be honest, of all the cheap/crappy versions of food out there, there might be nothing I find more delicious than crappy pizza.