Kristin Cavallari vs. Olivia Munn -- Who'd You Rather?!

It's a battle of the WAGS!

Kristin Cavallari (left) is the wife of Bears quarterback Jay Cutler ... while Olivia Munn (right) is the smokin’ hot girlfriend of Packers quarterback Aaron Rodgers.

We think both guys scored with their sexy significant others, but we gotta ask ...