Mine is mushrooms! I was just saying in another thread how much I love mushrooms. I don't think its very popular, however, maybe second least favorite after anchovies in which my Italian grandfather tried to get me into when I was a kid but hated because I felt they were too salty not because of its rep with kids since I still ate my spinach with love and vigor! I now really enjoy acciughe (anchovies)! I also don't see it get featured much in film. It's always pepperoni! So whether you eat old New York Style pizza, "authentic" Italian pizza or vegan pizza what is your favorite topping? Provide mouthwatering images/animated gifs and videos if you so desire!
Bon appetit!