Jesus H. Christ and his Holy Momma, DEFINITELY THE FREE ONE!!!
I kinda like how the commercial one sounds, but honestly, it's just fucking boring and lazy.
By the way, since everyone's talking about Justin Bieber on that youtube clip... JUSTIN BIEBER IS A COMMERCIAL ARTIST. You know...
http://www.youtube.com/watch?v=eEFlUkktDps
'nuff said.