Come to think of it, which team is more likely to get the popular vote?
I kinda feel that judging popularity for either would be best done by seeing which is more popular in a certain region. What I said about New York & it's many pizza joints, I would think it'd be more popular over there. Here in California, I'd wager burgers are a tad more popular, though whether that's because of Tommy's & In-N-Out alone or something else, I don't know. (EDIT: Ooh, I forgot about Illinois.)
Might be worthwhile to look up some stats if they're available.