Favorite bands :
This could go on forever. Pretty much anything without auto-tune is good. Favorites are Neil Young and Crazy Horse, Dream Theater, Pantera, Megadeth, The Black Crowes, and The Jimi Hendrix Experience.
Favorite guitarists :
Neil Young, John Petrucci, Bradley Nowell, Dave Keuning, Jimmy Page, Eric Clapton, Zakk Wylde, B.B. King, Taj Mahal, Buddy Guy, Jeff Healey, The Edge, Angus and Malcolm Young, Jimi Hendrix, Mark Knopfler, Dimebag Darrell, Stevie Ray Vaughn, Robert Johnson, John Fruciante, Paul Gilbert, Joe Satriani, Carlos Santana, Chris Broderick, Marty Friedman, Ted Nugent, Jerry Garcia, and many more.
Favorite bassists :
Flea, Les Claypool, John Paul Jones, Geddy Lee, Sting, and others I can't think of now.