On the subject of favorite basslines - rock 'n' roll division:
I love the bass line in Fleetwood Mac's "The Chain". It pops up sporadically and adds forward momentum and then just disappears for several measures at a time. Then, the song stops and an all-time classic bass figure kicks off the breakdown - at which time the bass line carries the band as it goes nuts, pretty close to straight noise when performed live. Usually, Buckingham steals the show for me, but that is John McVie's shining moment.
Marty