Nothing personal guys, but most of you need to do a WHOLE lot more listening to blues guitarists. Eric Clapton is a great guitarist, but I think it's a stretch to call him a BLUES guitarist. Infact, IMHO, there is only one great, WHITE blues guitarist: Stevie Ray Vaughn. First, we need to distinguish between acoustic blues guitarists, and those playing electric guitar. Among the great electric blues guitarists I would include: B.B. King; Buddy Guy; Luther Allison (one of my personal favorites); Albert Collins; Son Seals; Muddy Waters; Albert King; Acoustic greats (many of them were old Delta blues players): Mississippi John Hurt; Son House; Big Bill Broonzy; Bukka White; and Browny McGhee. In closing, I suggest you check out the new CD by Eric Clapton and B.B. King, titled "Riding With The King" - it's got some great playing by both guys.
