Aaron recently played Harvey "Two-Face" Dent in The Dark Knight, and who can forget Billy Crudup's portrayal of the well-hung Dr. Manhattan in Watchmen?

Who's it gonna be? Aaron or Billy? Vote!

The schedule:
First Round Voting: March 19-22
Second Round Voting: March 23-25
Sweet 16 Voting: March 26-28
Elite Eight Voting: March 29-31
Final Four Voting: April 1-3
Championship Voting: April 4-6
The champion will be announced on April 7th!

Check out the full bracket of all 64 Male Celebs here, you can even print it out and keep track of winners & losers!