In no particular order and off the top of my head

Dee Dee Ramone
C Jay Ramone
Mike Watt
Geezer Butler
John Entwistle
Jack Bruce
Steve Harris
Billy Gould
Lemmy
Sammi Yaffa

Gazza - Excuse my ignorance but who is James Jamerson if he is that good I'd like to check him out.

Ronnie Lane
Rinus Gerritsen (Golden Earing)
Bill Wyman
Darryl Jones (esp. his time with Miles Davis
John Entwistle
Flea
John Paul Jones
Paul McCartney
Willie Dixon
Stanley Clarke

Not in particular order!

Phil Lesh

Quote
slew
Gazza - Excuse my ignorance but who is James Jamerson if he is that good I'd like to check him out.

House bassist for Tamla Motown, slew.

Played on most of the classics in the glory days of that label.

[en.wikipedia.org]

Folks forget Jamerson because he died a long time ago, I think around 1983, and he was a behind the scenes kind of guy! A quiet dynamo! Motown would not have been the same without him, just loved his style! My favorites include:
The OX
John Paul Jones
Paul McCartney
Jack Bruce
Bill Wyman
Tom Hamilton
Ronnie Lane
Roger Glover
Chris Dreja

I know I'm forgetting a few! Oh well, I'll add them if I remember!

...in no particular order...

Bill Wyman
Billy Rath
Cait O'Riordan
Larry Graham
Ronnie Lane
James Jamerson
Arthur Killer Kane
Robbie Shakespeare
Leroy Sibbles
Paul Simonon

Eddie Speggetti from the Supersuckers
Lemmy
Dee Dee Ramone
Wyman
Ox
Nikki Sixx
Cliff Burton
Bootsy Collins
Brian Wilson

and Gaz is absolutly right
James Jamerson

Not one mention of Leo Lyons (Ten Years After)
He Could Play.

Gazza - I know him well thank you. I love most of the old Motown stuff, Much like Duck Dunn was for Stax/Atlantic then.

Quote
mexicostone
As i was surfin' on IORR , there's no thread about bassists.

Huh? This topic appears every few months, as well as many other top 10 lists. And usually people confuse 'greatest' with 'their favorite'. Which is why for instance Keith Richards always appears on someone's bassists list.

I think Keith is a fine bassist. One of the few guitarrists who is indeed a good bassplayer. But yes - the lists are always about favorites. Seeing Phil Lesh's name here is humorous to me. He's like the Ramen noodles of Bass.

Bill Wynan
Darryl Jones
Dick Taylor