Bah. If you need frozen pizza - which is the equivalent of military emergency rations even as far as a college diet goes - the best pizza is Elio's. Yes, it tastes like cardboard, but there's something about the painfully artificial tomato sauce and the cut-rate mozzarella that actually makes it taste good.
I never buy it, though. Oh man, I never buy it. It's one of those rare things that, even if I were full, I'd find a reason to keep eating it. It's crack in a box.