12/14/2010 08:43 am ET Updated Dec 06, 2017

Reese Witherspoon & Michelle Williams: Who Wore Strapless Better? (PHOTOS, POLL)

Strapless cocktail dresses in winter: seems like an epically bad idea, but still looks so good. Both Michelle Williams and Reese Witherspoon dared to rock frocks sans straps on Monday night.

Michelle donned a short, tiered and ruffled Dior number to the Cinema Society & Piaget screening of "Blue Valentine" in N.Y.C. She paired it with purple pumps and threw on a black blazer later in the night.

And on the other coast, Reese Witherspoon went for fuchsia Zac Posen with what appears to be trompe d'oeil bows at the premiere of Columbia Pictures' "How Do You Know" in L.A.

Check out some different views of each lady's look -- scroll down for a side-by-side -- and tell us what you think.