I primarily listen to "metal" and "punk", but I enjoy any music that contains a solid bass player. I played bass (and drums when I was much younger) in some bands in the 90's in San Diego, so I am partial to that instrument.

I tend to listen to bands for individual musicianship versus the band overall. Some of my favoriate bands/musicians are:

Slayer - all time favorite band period.
Jimi Hendrix
Jaco Pastorius
Primus/Les Claypool
Misfits
Charles Mingus
TSOL
SRV
Minor Threat
The Doors
Led Zeppelin/John Paul Jones
Rage Against the Machine/Tim
Flea
Infectious Grooves/Robert Trujilo
Guns'n'Roses/Duff
Funkadelic/Bootsy Collins
Agent Orange
Sodom
Cliff Burton
Lou Reed
John Entwistle
Corrosion of Conformity
Lynard Skynard