Papa Johns- Hate it. I had it once here at work and the sauce was way to sweet for me. I thought maybe it was just the pizza we got, but from the other posts it sounds like this is the norm for them.
Pizza Hut- I like them, all though I haven't gotten a pizza from them in about 6 months or more. It's always good for a thicker crust. I really hope our local one didn't change the sauce and make it sweeter. If that is the case I won't be getting there's anymore and I don't know what I'm going to do when I'm in the mood for a thicker crust (aside from making my own). We don't have a Dominos around.
Thankfully, I live in CT and work in New Haven. I drive by Pepe's and Sallys on my way to the highway, so I can always stop there for some excellent pizza when I'm in the mood for a thinner crust. Around where we live there is nothing but independant pizza shops. Seems like there is one on every corner.