Steve Granitz, Kevin Mazur/WireImage
Disclaimer: Our research shows that Sophia Bush is in fact wearing two separate pieces (a peplum top and cropped pants), but her lacy Catherine Malandrino ensemble is still similar enough to Naomi Watt's Stella McCartney style to declare an official face-off. So let the battle begin!
First things first, Naomi's design is one shoulder versus Sophia's strapless top. We're torn because The Impossible Oscar nominee's asymmetrical neckline is edgy, while also still being lovely in lace! But the One Tree Hill vet offers a tasteful heap of ta-tas.