Last time I was at John's (at least a year ago), they were using the regular cheap pepperoni and also shredded cheese, which I'll give them the benefit of the doubt and say that it was mozz. I haven't been to the one in the theater district (is it still there?) in over 10 yrs. A decent pie in mid/uptown is Angelo's on 57th. The building had a coal overn in there forever so they built the pizzeria around it.