Saw both commercials today while waiting on Thanksgiving dinner.
GM does a really nice job of getting us to believe in their corporate recovery. They do this by using a concept that Americans' value - falling down and getting back up ready to fight. They use a good mix of failure/recovery scenes from sports (boxer, Evil Kenevel), history (space program) and entertainment/humor (Animal House Pearl Harbor scene). It definitely held my attention and created an emotional response - which is what an ad is supposed to do but not many achieve this anymore.
This FedEx commercial is a bit older, but smartly they are running it now during the brouhaha over airport body scans and pat downs. Good use of humor with the TSA agents criticizing a business traveler's presentation as boring.