Personally, I hate all commercials, but my least favorites are the Dollop of Daisy ones and the Velveeta commercial (Put velveeta in, leave the cheddar out, mix the salsa, in pop it in, and pull it out, etc.) They just get caught in my head and I can't stand them!! There are only a few commercials that I actually enjoy or that make me laugh.
Just like Schatzie's Mama, I love commercials with dogs, especially the Purina puppy chow commercial where they show all different kinds of puppies (they show Yorkies!!) and I love the Kibbles and Bits commercials with the dogs that dance. LOL