Off the Grid: Who is the Greatest Rock Band of All Time?

Scot McKnight makes the claim  that this is a no-brainer: it is obviously the Beatles. I believe differently; I think that honor should go to Led Zeppelin. While the Fab Four can rightly be described as musical geniuses, maybe with the exception of Ringo Starr, has there ever been a more complete rock outfit than Led Zeppelin? Robert Plant, perhaps rock's greatest lead man, Jimmy Page, one of the greatest guitarists of all time, the most underrated, but perhaps the most talented member of the band, bassist, John Paul Jones, and last but not least, the greatest rock and roll drummer (sorry Keith Moon), John Bonham.

What do you think? I'm sure cases can be made for others, but at least on my iPod there is no one I'd rather have help me through a long night at work. I don't know what I'd do without a little "Led for my head".