We know she's out to save the world (and save the dolphin), but how does Heroes actress Hayden Panettiere match up in a fashion face-off against Jane Seymour?

Hayden dazzled in this hot turquoise Dina Bar-El in September at a Declare Yourself event, while the Dancing with the Stars contender and former Dr. Quinn: Medicine Woman showed off her fit figure in a satin sheath at a movie premiere recently.

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