Best blues guitarist, Clapton or Green

If you stick to the original question and compare these two guitarists when both were dedicated blues guitarists in the late 60s, I would like to know any song that Peter did that excels Eric's playing on "Double Crossing Time", and "Have You Heard" while he was with John Mayall, or "Politician" and "Born Under A Bad Sign" during his time with Cream.

Audiozen hit it right on the head. Eric popularized blues and trancended it in the late 60s. All guitarist, whether blues guitarists or not follow his lead, most especially in acknowleging the guitarists that preceded them. Eric has always been very humble and proud of his mentors. Bad-mouthing Eric because of his musical journies is quite trivial to what he has meant to the "Capture" of blues music as music's most magical moment. "Crossroads" concerts make my point perfectly!