Oscar Style Showdown: Sandra Bullock, The Glamor.

It's a battle of America's Sweethearts!

Academy Awards host Anne Hathaway is Young Hollywood royalty in Valentino Couture and Tiffany diamonds. But oops, she's styled almost exactly like last year's Best Actress Oscar winner Sandra Bullock, who donned Vera Wang for this year's festivities.

So which glamour gal gets your vote?

While you're indulging in our favorite pastime of pitting fashionistas against each other, check out E!'s Red Carpet Pose-Off Game.

Natalie Portman vs. Scarlett Johansson, Mila Kunis vs. Cate Blanchett, Reese Witherspoon vs. Amy Adams—who rocked A-list attire at the Academy Awards?

Make the call, and you could win CC Skye pavé pyramid stud earrings and a Judith Leiber beaded slide-lock clutch!