When I listended to Voodoo Chile by Hendrix I knew I wanted to play guitar... that song and other songs by Hendrix have had the same effect on countless people including Joe Satriani and Kirk Hammet.

Favorite All Around: Hendrix
Favorite Blues: Hendrix/SRV
Best Tone: Eric Johnson
Fastest: Jason Becker/Yngwie Malmsteen
Weirdest Stage Antics: MIcheal Angelo Batio

I also like: Steve Vai, Angus and Malcom Young, Joe Satriani, Kirk Hammet, Joe Walsh, Don Felder, Eric Clapton, Jimmy Page, Dimebag Darrel, David Gilmour, Rhandy Rhoads... and there are more but I am too lazy to list them.