I don't like it.
The pineapple usually feels mushy for me, its almost a sensorial nightmare just like a fugazzeta or palm heart pizza.
With the typical argentinian toppings and condiments, it simply doesn't work most of the time, you'll probably be ridiculed for the rest of your life if besides liking Pineapple pizza, you also like Crema del Cielo ice-cream (Is like american cream ice-cream, with blue colorant, and a tiny bit of vanilla and cherry, but its so subtle that you cannot even tell the difference).
Still nothing is worse than fricking Menta Granizada (Minty Hail, mint ice-cream with tiny bits of chocolate), it became such a joke here that if someone asks for it in a house, you'll get tooth-paste instead before even ordering and (with nice teasing and laughs) to ask for a real ice-cream flavor.
I like pineapple, but not for Pizza, I rather put it as a layer in either a cake or cupcakes, or simply have it as a drink.