Joe's has good pie, and a lot of options. They have a clam pizza on their menu, which I really enjoyed one time (red pie, although white is also an option), but subsequent attempts at this $17 pie have been disappointing so I wouldn't recommend it anymore. Their mushrooms are also less inspiring than nearby Rodolfo's, but their Margherita is excellent. They also have New York style Sicilian pizzas which are very good if you want a thicker pie.
One thing to be aware of is that one of the gentlemen working the till frequently rang-up prices a bit higher than they were listed on the board; I'm told this has been addressed.