Pretty straightforward; rank your best from favorite to least favorite and why.

I'll start:

1. John Bonham (Bonham makes up the whole foundation of Zeppelin. Sure Page started the band, but without Bonham, Zeppelin wouldn't be what it is back then and today)
2. Jimmy Page (Yes, he started the band, and he produced the majority of the songs in every album, so you gotta give him the credit)
3. Robert Plant (Yep, he provided some metal-esque wailingvocals, but sometimes he just overdoes the bluesy tones)
4. John Paul Jones (I dunno, I like his contributions to the band as bassist and keyboardist/mandolinist/etc. , but I felt that the other 3 made a bigger contribution)

Bonham
Page
Jones
Plant

It was hard to pick because everyone is sooo darn talented!

Why the Deuce did you pick Plant last? He's the straightest man alive since Chuck Norris.

J/K

Jimmy
John
Robert
John Paul...but no diss to the keyboardist tho', I liked some of the bands he went on to produce too (The Mission, etc,)

Page
Plant
Bonham
John Paul

There has been a lot of speculation lately as to exactly how much JPJ actually contributed to the band. He's made a few snide remarks the last two years about some of the songs he never really got credit for: specifically the riff to Celebration Day, which he claimed Jimmy could never get right.

He's responsible for a lot more than most in this thread are giving him credit for.