for me it depends on the style of music the person plays. Blues is BB king. Acoustic i say jack johnson. Rock, well rock has changed from the 80's to the 90's. There are so many great rockers. You have Vai, Clapton, Page, Halen, Wyld, and tons more. Well jimi i find as an influencial guitarest, but not one of the best. Dont have a fav of rockers because there are so many great. for jazz its probably chuck berry. Well if you consider him jazz. Its like jazz rock. Man i cant believe jimi could mess up a song until i herd him do his version of johnny be good. Chuck is way better at the song then jimi.