1) Slash. 'Appetite.....' changed my life in '87 and is still my all time favourite album!!
2)Joe Perry. Early Aerosmith has some of the dirtiest, sexiest riffs around.
3) Jerry Cantrell. His riffs are just pure filth, you can't help but groove to 'em!!
For me a great guitarist doesn't have to be the most technically proficient or be able to play 100 notes a second, a great guitarist is one that makes me wanna have sex, dance and drink Jack (in any order!!!).
head_creeps