There is no pizza better than margarita and there is no better way to know if a pizzeria is good than to have them make a margarita.
These pineapples and shit, I won't even comment.
Bad pizza types exist here too, and are popular. My "favourite" is called rural pizza where they put 5 types of dried meat shit like pancetta, kulen, pepperoni, pieces of prosciutto and whatnot. In the end you get a grease pool of cheap delis. Where's the pizza in that, I am not sure.