Two actresses, two red carpets, one dress - it's a fashion frock off!

Between Hannah Montana actress Miley Cyrus and Derailed actress Georgina Chapman but who do you think wore it best?

The dress is by designer Marchesa, Miley wore hers first, even though Georgina is a co-founder of the fashion designer label!

Miley wore hers to the American Music Awards way back in November...

Keeping it simple with black court shoes and her hair tied back Miley looking simply stunnning.

Georgina wore hers six months later, just the other day, at the Cannes Film Festival...

G went for the opposite of Miley by wearing her hair down, wearing a shoulder bag and opting for open toe t-bar sandals.

Miley looked fresh and radiant whereas Georgina looks tanned and glowing... but who do you think wore it best?