I have only been to the Jimmy Buff’s that was in Scotch Plains. They closed now. Towards the end, before they closed, I went there one last time, it was super greasy.
You are right and wrong about being too much bread. Some places give you more than one hot dog, give you lots of peppers onions and potatoes, and mustard.. so it is a better ratio of bread to what’s in the bread. But some places you’re right it is just a lot of bread.
I cannot find pizza bread for sale anywhere (I’m down by the Jersey Shore), but I did find it twice at Shoprite as odd as that seems.