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