Who is considered the most famous classical guitarist?

Andrew York (Contemporary)

Who was the best guitarist of all time?

Jimi Hendrix
Jimi Hendrix has been voted the Greatest Guitarist Of All Time by readers of the Louder website. Over 70,000 votes were cast in the poll, with Hendrix topping a list of 50 guitarists, followed by Jimmy Page, Eddie Van Halen, David Gilmour, Eric Clapton and Stevie Ray Vaughan.

What is the most well known instrument?

What Is the Most Popular Instrument to Play?