Only tried Dominos once, and it was nothing like a real pizza, it was absolutely disgusting. Pizza hut is no better.
ASK and Pizza Express make slightly better pizzas, but again they're not the real deal. I had one local place run by turks that made amazing fresh pizzas, made in front of you and stonebaked for only £6.
Real pizza has a very fresh and thin base with a small layer of decent meats and real vegetables on - not full of E numbers and sugar. I really don't want to know what companies like Dominos use in their ingredients.