What do we do when a group of Hollywood ladies (likely friends) get together at an official event? Pit them against each other in a fashion showdown, of course!

The cast of The Twilight Saga: Breaking Dawn Part 2 attended Comic-Con in San Diego on Thursday, and with four leading ladies in attendance, we need to know who you think looked best. Take a peek at your options -- and make sure to vote!

Kristen Stewart

Kristen Stewart at Comic-Con

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Sigh. K. Stew almost hit the mark here fashion-wise -- the yellow BCBG Max Azria skirt is cute and appropriate, but paired with those clunky black kicks? Not so much...

Ashley Greene

Ashley Greene at Comic-Con

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Ashley looks great in her chic white, belted dress, but is the look too dressy for an event where you can totally get away with embracing your inner nerd and dress a bit more funky? You decide...

Nikki Reed

Nikki Reed at Comic-Con

Don't count Nikki out just because she's the "mean girl" of the Cullen fam in the films. She definitely looks gorg -- but does her high-waisted, calf length black skirt make the cut for best dressed?

Elizabeth Reaser

Elizabeth Reaser at Comic-Con

Can Mama Cullen hang with the youngsters when it comes to fashion? Her striped, suit-style, one piece may be a toss up, but the strappy black heels are definitely a hit!

Who wins best dressed in your book!?

Photos Courtesy of: Getty Images