VINCE VAUGHN
Vaughn cleaned up for the Los Angeles premiere of the The Break-Up, but more often than not, the low-key bachelor (in June) wears a week's worth of shadow. Luckily, girlfriend Jennifer Aniston is fond of it: She once said of ex Brad Pitt's scruff, "I do like the beard. It's soft."

What's hotter?
Smooth
Scruffy