Part of it is my preference for old-school animation over the computer-generated kind.
Classic Mr. Peanut is a sophisticated advertising icon. Look at those spats. And his hat fits properly. He's obviously more comfortable with his body than the poser above.
I'd have drinks with Classic Mr. Peanut. New Mr. Peanut just makes me want to check if my wallet's still in my purse.
Seriously, which of these characters would you rather have at your party?