Some of my favorite ads:

https://www.youtube.com/watch?v=i-80SGWfEjM

https://www.youtube.com/watch?v=_MC3XuMvsDI

https://www.youtube.com/watch?v=A_DIvRKPsHU

The Bad:

https://www.youtube.com/watch?v=XqHYzYn3WZw

https://www.youtube.com/watch?v=NcGhLcVqxf0

https://www.youtube.com/watch?v=4WTA_8waxTo