I have been surprised in the post-mortem on the Super Bowl commercials that my favorite has been so little mentioned: the Chevrolet "Ain't We Got Love" ad. This one is a compendium of forty years of pop songs mentioning Chevrolets. Some of the songs are performed by the original singers, some by regular people (ok, actors playing regular people).
Advertising is designed not just to sell a product once, but again and again. The other ads are trying to insinuate their product into the popular consciousness. This one proves it.