I worked as a manager for Pizza Hut, Papa Johns, and Little Caesars back in the 90's (600/week was pretty good back then).
Of all of them, ONLY Pizza Hut and one Papa Johns (that I worked at) is still open.
Little Caesars got run into the ground by bad management. The district manager hired his cousin to be my assistant, and he'd show up 10% of the time. Then after fixing one store (food and labor cost perfect, smooth running)... they sent me to the worst ghetto store imaginable where nobody showed up for work on my first day. I had it with them at that point; no help at all from district, and they refused $100/week raise to fix that shithole - screw them, went to Papa Johns.
Papa Johns had great middle/district management, but they just couldn't seem to hire anyone that gave a damn under management level. The one a mile from my house just closed (hour wait for your Pizza on a Tuesday, 3 hours on a Friday - not exaggerating). PJ's has gone to hell around here; if you get a pizza that isn't half giant bread bubbles, you got lucky.
Pizza Hut; still all of them open, but near the worst in pay scale for management.
From my extensive experience with them, I'd say the majority like Pizza Hut, but it probably has more to do with horribly run franchises than strictly taste.