Round Four — Vote for The Best Pizza in Las Vegas: Grimaldi's, Settebello, Pizza Rock, Pop Up Pizza

It's time to decide once and for all who has the absolute best pizza in Las Vegas. Here's how it works. Each day for the next four days, you'll have the chance to vote in a poll. Each poll will pit four different pizzerias against one another, and the winner from each day will go on to a finals round later this week.

Then, in the climactic conclusion to Pizza Week, we'll declare the victor. Each poll will remain open for 24 hours after it's posted. If you want to make the case for or against a pizzeria, by all means, leave a comment.

Naked City Pizza Shop won round three of voting and faces Radio City Pizza and The Pizzeria aka Secret Pizza at Cosmopolitan of Las Vegas in the finals on Friday. Today, Grimaldi's Pizzeria, Pizza Rock, Pop Up Pizza and Settebello face off. Vote for your fave.