Another vote for Giordano's.
The only words of advice I can give you are that I hope you have a room close to the lobby if you decide to order pizza. We ordered from Giordano's, and they would only deliver to the lobby.
Our room was pretty much at the far end of the resort, so a 10 minute hike to the lobby to go pick up the pizza, plus another 10 minute walk back to the room carrying a piping hot pizza (which was not so piping hot by the time I made it back).