The Edge Of Love premiere couldn't exactly go wrong in the beauty stakes, but when two gorgeous actresses like these collide on the red carpet, everyone automatically asks, who dressed the best? 

Well, the ever so slim and delicate Keira Knightley appeared to be channeling Jaclyn Smith in her chic white jump suit and cutely flicked hair. While Sienna...okay, I have no idea what her stylist was channeling. But you catch my drift. Please decide who you like the most.