I love so many guitarists, choosing only 7 will be very hard... So here I will write two list, early heroes (seventies/eighties) and contemporary heroes
Early heroes :
1. Richie Blackmore
2. Michael Shenker
3. Buck Dharma (so underrated !)
4. EVH
5. Uli Jon Roth
6. SRV
7. David Gilmour
Today's heroes :
1. Andy Timmons
2. Chris Poland
3. Brett Garsed
4. Ty Thabor
5. Satch
6. Vai
7. Petrucci
leaving out Alex Lifeson, Frank Zappa, Nono (of the French band Trust), Randy Rhoads, Jeff Beck, Eric Clapton, Allan Holdsworth, Al Di Meola, John McLaughlin, Rory Gallagher, Brian Robertson, Yngwie Malmsteen, Adrian Smith, Michael Lee Firkins, Jason Becker, Michael Romeo, Devin Townsend, Scott Henderson, Shawn Lane, Blues Saraceno, Tore Otsby, Jon Finn, Carl Verheyen, Marco Sfogli, Steve Morse, Eric Johnson, Marty Friedman, Mike Keneally, Paul Gilbert, Matthias Eklundh, Robben Ford, Derek Trucks, Joe Bonamassa, Tom Quayle, Jimmy Herring, Tommy Emmanuel ... is really heartbreaking