After searching around for a restaurant tonight, we decided to go to Grimaldi's.
All I can say is that it was the best choice for food the entire time I have been in Las Vegas this week.
I'm not a huge pizza eater, but this was the best pizza I have ever had.
The service (our server was Anthony) was excellent. He is very knowledgeable on everything on the menu and was very attentive to our dining needs.
If you want great pizza, then Grimaldi's is the place to go!