Best rock bass player

jack cassidy of the Jefferson Airplane/Hot Tuna. Listen to any live Airplane album and you will hear how he unobtrusively drives the band intensely forward.

Jack Bruce is a technical great, but when playing with Cream went off on his own path during songs instead of laying down a strong bass line.

Neal

Jack Cassidy...... Awesome.
Good call

In my time its Geddy Lee and Chris Squire. I saw them many time's since the late 70s.Most recently...Geddy Lee with the Clockwork Angels tour. In August of 2013 I saw the so called Yes....even though they were pretty good. They can never really be Yes without Jon and Rick.

Mental, I had Entwistle on my list of eight.

FWIW the more recent players don't do it for me with the exception of Les Claypool. But the modern guitarists (Satriani, Van Halen, etc.) don't do it for me either.

Jack Casady was top of my list. I guess this far down people don't read all the posts.

Doug Ferguson, original bass player in Camel was pretty awesome, as was Andrew Latimer when he picked up a bass guitar as well.

ALso a big fan of Richard Sinclair who played bass mainly with canterbury rock group "Caravan" (it's dromedary day I suppose) and also did a stint as bass player with Camel in teh late 70's.

Also gotta mention Chris Squire (Yes) in the discussion.

While on the prog rock track, in more recent years, how about Colin Edwin of Porcupine Tree?