One of my, if not my favorite, pizzas is a thin-crust pizza with garlic Alfredo sauce, topped with onions and habaneros, and covered in mozzarella, ricotta, and pepper jack cheese....
It's freaking good....
I can't find an image of said pizza, but this is a pretty close approximation of one.
A local place makes them, and they're damn good.
As for pineapple on pizza... eh, I don't like it and won't eat it, as I just don't like pineapple to begin with. But I'm not so picky that I can't just pick it off and put them where they belong... in the trash. Honestly, if you like pineapple on pizza, it doesn't bother me, I'm not the one eating it.
Like anchovies... thanks, but fuck no.... If you like them, have at it.