It's a battle of two smokin' starlets in the same sexy red dress -- so who wore it better?

On Tuesday, "90210" star Jessica Lowndes hit the red carpet in London for the Aston Martin Tailoring collection wearing one super-tight Stop Staring! red dress. 

The actress looked amazing in the curve-hugging ensemble, and finished her look with a silver clutch and black pumps. She wore her hair in loose curls, and matched her fiery look with a bold red lip!

Lowndes isn't the only actress who has rocked this dress -- last September "Girls" star Allison Williams wore the same sexy outfit to "The Master" premiere in New York.

While the HBO star didn't put her girls on display like the "90210" actress -- she did look super chic in the knee-length ensemble.

Williams finished her look with a blush peep-toe pump, and likewise wore her hair in soft curls. She kept her makeup on the lighter side and sported minimal jewelery.

So who wore it better? It's a tough call -- while we like Allison's shoes way better, the nod goes to Jessica because she has that whole bombshell thing going for her with the smokey eye and red lip.

Who do you think wore it better? Sound off below and click "Launch Gallery" above to see more stars in dueling dresses!

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