I loved the doritos ad.
'La bonne cuisine est la base du véritable bonheur.' - Auguste Escoffier
(Good food is the foundation of genuine happiness.)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
I loved the first Doritos ad ("Cheesy") and laughed at the David Letterman/Oprah one, but I've definitely been turned off by so many of the commercials this year.