I've only been once, but Mozza is fantastic (if a bit unorthodox). They have a bar special where you can get a pizza, glass of wine, and dessert for $30. It used to be an insane $20, but it's still a bargain when you consider that some of their pizzas cost $20+ and their desserts are in the $10 range.
On a recent trip I discovered DeSano, which was awesome. Some of the most realistic Neapolitan I've found in the states.