Having spent some serious time in New York, Chicago, and San Francisco, I've had my share of love affairs with all kinds of pizza, from the giant, thin pies at Grimaldi's in Brooklyn to the sausage-stuffed deep dish at Giordano's to the organic, local ingredient-laden, egg-topped variety at Alice Waters's Chez Panisse. But if I had to choose, my favorite type of pie would be the one made in the ethereal Neapolitan style. It has a crisp, ever-so-slightly charred exterior and a chewy but light interior. In San Francisco, the best of this kind is found at A16. What's your choice pizza?