No, it's really all different. I live with a man who could eat pizza morning, noon and night 24/7/365. Trust me, he knows. I just asked him what his favorite Disney World pizza was and he said "that joint at Animal Kingdom Lodge". Meaning Mara. Second would be the Boardwalk/Spoodles take out window ("because they changed their sauce"). Third would be Port Orleans Riverside (not French Quarter because "it's not the same"). Reason - "it's so greasy!" He hates the stuff on Sunset Boulevard at Rosie's because the sauce is too chunky.
So, sample all the different pizzas at Disney World that you want!