Nothing wrong with pineapple on a pizza.
But then again my four favorite pizza's are:
Pizza topped with traditional marinara sauce Squid, Shrimp, Mussels, and garlic
Pizza topped with a pesto sauce, arugula, and shrimp
Pizza topped with an olive oil base, gorgonzola cheese, bacon, red grapes, and balsamic drizzle.
Pizza with marinara sauce, buffalo milk mozzarella, and aged prosciutto.
Life is too short to be boring. There is more to pizza than pepperoni, fake shredded mozzarella (how is it even called mozzarella?), olives, sausage, and peppers. Don't take me wrong that stuff is good too. Just get out of your comfort zone a bit. You might be surprised.