The problem with having the overloaded pizzas such as the "house combo" or the "everything" pizza is that you end up with more of the topping than of the actual pizza, and it becomes hard to tell if you even have a decent pizza underneath it all. You may have a good boatload of toppings on top of a terribad pizza.

The REALLY bad pizzas, though, are the ones that can't even support their own structure when they don't have any toppings.