Jennifer Lawrence vs. Josh Hutcherson would be EPIC

Katharine McPhee versus Kelly Clarkson

I completely agree.

I'd watch Matt Damon and Ben Affleck square off

I'll also want to see Sasha Alexander versus Angie Harmon. Carla Gallo vs Emily Deschanel. Shay Mitchell vs Ashley Benson and Lucy Hale vs Troian Bellisario

Carrie Underwood vs Jordin Sparks. Michelle Rodriguez vs Jordana Brewster. Sarah Michelle Gellar vs Alyson Hannigan. Rachael Leigh Cook vs Bianca Kajlich

Daniela Ruah vs Renee Felice Smith. Zooey Deschanel vs Hannah Simone. Bridgit Mendler vs Vanessa Hudgens