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    Yacht Hot! Rosie Huntington-Whiteley, Alessandra Ambrosio & Chanel Iman Battle It Out on Roberto Cavalli's Boat—Who Looks Best?

    Rosie Huntington-Whiteley, Chanel Iman, Alessandra Ambrosio, Cannes Getty Images

    What to wear on Roberto Cavalli's yacht? is definitely on the top of the #SupermodelProblems list, with a close second being How can I beat my colleagues in the yacht hot clothing competition??

    Looks like Alessandra Ambrosio, Rosie Huntington-Whiteley, and Chanel Iman all asked themselves that age-old question before showing up for cocktails and canapés on the high seas, and it looks like all three of them came up with an excellent answer. Now we get to play the classic game of who boats best? And by "best" we obviously mean hottest.

    VIDEO: While these models were yachting, LiLo was partying! But why was she at Cannes?!

    Alessandra Ambrosio, Cannes Pierre Suu/FilmMagic

    First up is the brunette beauty in a lipstick-colored, slinky style by Mr. Cavalli himself. While the veteran supermodel was smart to honor her host, there's something a tad too '90s about this look. It feels better fit for a big-hair bash in Miami than a classy ship soirée in Cannes.

    Rosie Huntington-Whiteley, Cannes Jacopo Raule/FilmMagic

    The Search star fares slightly more fashionably in an all-black bondage dress. There is nothing sexier than a bustier top on a slinky cocktail frock, but this falls short of being a home-run because of the general lack of flair. Yachts call for drama!

    Chanel Iman, Cannes David M. Benett/Getty Images for Puerto Azul

    And so our vote goes to the beautiful Miss Iman in her one-shoulder Reem Acra. It's as decadent as a Dynasty costume but with a modern cut that fits in seamlessly with the forward-dressing crowd. And it's gold, the color of "champagne wishes and caviar dreams," we imagine...

    What's your say?

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