Ya joes is definitely not the greatest ever. Its just the best in the Greenwich/tribeca area(IMO). Di Faras is the best I ever had. I need to check out Deninos I have only been to Staten a handful of times.
I may stop by and eat there for lunch one day. Best pizza I had was at Di Fara pizza in brooklyn, Lucali in BK is great too, but it takes a while to get there. My usual spot is joes pizza Joe's Pizza | The Greenwich Village Institution