Best blues guitarist, Clapton or Green

Unless you have seen Muddy Waters play , which I have, there is nobody, and I mean nobody, who can convey the blues on electric guitar better except and this is a big maybe is BB King. Now if you want to consider acoustic guitar, then maybe Robert Johnson. I saw in the late 60s,
Peter Green, Eric Clapton, Jimmy Page, Jimmy Hendrix, and
Jeff Beck, and although these guys could wail up a storm,
personally I think Eric tried the hardest to emulate a truly blues style. His take on Chester Burnett's(Howlin' Wolf) Smokestack Lightning with the Yardbirds was the best of the derivative blues style. And of course his take on Willie Dixon's Spoonful was masterful and obviously he took Robert Johnson's Crossroad Blues and made it his own.

How about Quicksilver Messenger Service's version of Happy Trails???

Captpenny: I agree with you on Mike Bloomfield; you got to
here him with Muddy Waters on the Fathers and Sons album
a true knockout blues album if there ever was one.

I saw the 1969 Rolling Stones concert with Mick Taylor, it
was the most god awful concert (old Spectrum, Philly). The only redeeming factor was that BB King was the opening act.
I saw in England in 1969 the Rolling Stones, they were god awful. The only redeeming factor was the Yardbirds with BOTH Jeff Beck AND Jimmy Page was the opening act. They put the Rolling Stones to shame. Eric has repeatedly stated he will not reform Cream with Jack Bruce.

It was 1967. I never saw the Who. The Yardbirds were in the movie Blow Up, the Who turned it down. The Beck/Page duo
recorded only four songs ( one being a radio commercial for
great shakes drink).

Already mentioned. Acoustic guitar master; knows what and why for each and every note played.