So I'm of the mindset that I absolutely love a meat lovers pizza. Of course you can't go wrong with a classic pepperoni or adding bacon anywhere in the mix. That said, I've recently become fond of grilled chicken and red onions on a thin crust!
I've tried pineapple on pizza and while I love both pineapple and pizza separately, I couldn't quite get the knack of the two together. This is my opinion only, but it was a strange texture of wet, hot cheese with a bit of tang to it and just not my cup of tea. However, I'm not in the camp of "You like Pineapple on pizza? Blasphemy!" I say to each their own.