For overall feel and enjoyment of his playing it's got to be John Paul Jones. For me, he's a huge part of what made Zep so amazing.
Can't believe I forgot Carole Kaye.Chris Squire
Geddy Lee
Paul McCartney
James Jamerson
Pino Palladino
Tony Levin
Jaco Pastorius
Donald "Duck" Dunn
Carole Kaye
Honourable mention would be Paul Webb (Talk Talk).
That's Tal Wilkenfield! I love her! Been a fan of hers for a couple of years!