I haven't thought about my top 5 guitarists in awhile but in terms of influence it'd go something like this (in no particular order and only rock guitarists):
1: Eddie Van Halen
2: Nuno Bettencourt
3: John Petrucci
4: Adrian Smith
5: Ace Frehley/Alex Lifeson
So not really in terms of who is the best or even who I enjoy listening to the most, but I'd say these guys have impacted my playing the most, especially since I've been listening to them for so long. I'd say John Petrucci is probably the most relevant today. #5 was a tough choice because there are lots who could go there. I went with a tie because Ace was more of an influence on my approach to solos and Alex had more of an impact in his use of more colorful chord voicings than the standard power chord. I've always liked the way Ace solos and he was the first guitarist that made me think of the guitar solo as a composition in itself rather than a spot to show off. His solos were also the first I attempted to learn on guitar myself.
1: Eddie Van Halen
2: Nuno Bettencourt
3: John Petrucci
4: Adrian Smith
5: Ace Frehley/Alex Lifeson
So not really in terms of who is the best or even who I enjoy listening to the most, but I'd say these guys have impacted my playing the most, especially since I've been listening to them for so long. I'd say John Petrucci is probably the most relevant today. #5 was a tough choice because there are lots who could go there. I went with a tie because Ace was more of an influence on my approach to solos and Alex had more of an impact in his use of more colorful chord voicings than the standard power chord. I've always liked the way Ace solos and he was the first guitarist that made me think of the guitar solo as a composition in itself rather than a spot to show off. His solos were also the first I attempted to learn on guitar myself.