I know that everyone has an opinion on the best pizza, and I don't want to start a fight -- I'm just offering information.
A couple of months ago I read
an article in the Wall Street Journal about a fellow who set out to eat a slice of pizza in every pizza joint in Manhattan and document the results on his web site,
Slice Harvester. He has now completed his quest and
he rates NY Pizza Suprema as the best pizza in Manhattan, the only place to get a score of 8 on his 8-point scale.
NY Pizza Suprema is at 413 8th Ave, between 30th Street and 31st Street, which is to say, a stone's throw from the southwest corner of NYP.
I've never eaten there, as I haven't been in Manhattan since I came into possession of this information, but I directed a Manhattanite friend of mine there and he reported "It's pretty d*mn good," and sent me this picture of his slice. I plan to eat there the next time I am in town.