The classic is with ham which I loved as a kid but I think now it’s sort of essential to have some pepperoni or salami or something in addition to or instead of ham if having pineapple. It needs that intensity to contrast the pineapple, the grease too, it’s a part of it, mixes with juice from the pineapple and just produces the most “pizza” of tastes, it’s like pure monosogoodium pizzamate. Chicken, I mean it’s probably fine but in general chicken on pizza is pretty dry and bland and it’s doing nothing to compliment the pineapple particularly.