Best guitarist

Personally I say Either Hendrix or Dimebag Darrel (Pantera). Dimebag was actually not allowed to play in guitar competitions as a kid due to his skill.

Esteban or Carlos Santana.

a guy named michelangelo batio or something like that....
he's.....god?
hendrix,yngwie and others just couldn't compare to his guitar playing.

Yeah, Dimebag was the shit

Here's a list I have:
Zakk Wylde
David Gilmour
Jimi Hendrix
Randy Rhoads
Jerry Cantrell
Alex Lifeson
Jerry Garcia
Slash
Jimmy Page
John Frusciante
Donald "Buck Dharma" Roeser
Phil Anselmo
Kirk Windstein
Pepper Keenan

There's just way too many to list

oh yeah I totally neglected Tom Morrelo and Adam Jones (not so much classical ability, but what they can make the intrument do).