Given a choice between Pizza Hut, Dominoes & Papa Johns, Pizza Hut definitely wins. In my area there's another chain (not sure how big it is) called Ledo's Pizza. Ledo's blows them all away by far.
Five Guys is OK, but the one near me is disgusting to go into. You can literally slide on the floor. Grease coats everything in the store, and it's palpable. Not at all appetizing.
Many years ago I worked at a big Boy and they had that same greasy floor going on, even though they mopped it several times a day. Its amazing all the grease that gets into the air like that. I wonder if better hood exhausts would have helped.