Both great. I'll take JPJ cause he was fine playing simple when the song needed it. The OX tended to overplay at times.

And I love that Zep put out ITTOD before they imploded. That album showed an entire different (and yet, still awesome) side of the band.

Listen to the bass lines on this:



Oh, and:

I'd have to go for John Entwistle, but John Paul Jones is a great keyboard player.

Easily JPJ. Not even close.