OMG, I haven't read this thread for a while and the debate has exploded!
I really don't understand the appeal of Domino's. We had one open in our town and so I tried it, and a couple of times since - always found it over-rated. Supermarkets sell better Pizza's which shouldn't be the case versus fresh! I don't like the base at all.
Pizza Hut and Express are okay (but also nothing really special IMO) , but the one independent a few miles from us does absolutely delicious pizza.
So if I had to choose from this list, Express, Hut, Domino's in that order.