You know, now that you've brought this up. I think Nike is doing an outstanding job with its ads of late. I liket he one mentioned here as well as "The Lebrons" which are terrific (Lebron will out-Michael Jordan in, what I'm sure will be a few films). Compared to much of the ad drek out there (McDonalds, Charles Schwab and most beer ads especially), Nike's ads are effective and entertaining.
I kinda like the Kevin Garnett Adidas commercial called "What's Inside". It features the different sides of his personality. I get the biggest kick when he's a little kid with a big ol'KG head on top.