Eva Mendes looked cute as a button at the 2009 CFDA/Vogue Fashion Fund event wearing a polka-dotted Christian Dior Resort 2010 sheath, made from the same fabric as a Dior dress worn by Dita Don Teese during Paris Fashion Week just a few weeks earlier.

While I think this periwinkle shade and polka-dot print suit both ladies, I much prefer the classy cut (and adorable, bowed belt) of Eva's pick to the harsh gathering and plunge of Dita's. I also think the floral accents on Dita's design are a bit gaudy (her signature red lipstick doesn't help).

Which style is the right way, and which one needs to hit the highway? You tell me in the comment section below.

Photos (left to right): John Shearer/WireImage; Eric Ryan/Getty Images