Jessica Biel: Prettier as a Blonde or Brunette?

Jessica Biel has been a blonde, and looked great. No surprise there. But recently, she joined a growing list of stars (Demi Lovato comes to mind) in going dark.
The other night at a Glamour Reel Moments event, Jessica showed up with her locks dyed a chocolate color so deep they bordered on black. Quite a change!
Tough as it is for many women to pull off such a shift, we'd say she did so with flying (darker) colors. But does she look better as a blonde or a brunette? Vote: