As an outsider, I prefer the $1 slice to Grimaldi's, not sure if that's one of the better places but it was the only other pizza I've had in NYC
Grimaldi's isn't the absolute best pizza in the city, but it's a very good example of a thin-crust coal-fired New York pie.
But to each their own. I still have a soft spot in my heart for doughy-crust over-cheesed death-on-a-plate small-town Canada pizza since that's what I grew up with.