There is someone we haven't talked about and that is Jack White. It seems to me he was one of the last big acts before rock started to fade. I came late to White but I'm a big fan now. His interview with Dan Rather was excellent. I don't know where he ranks with the guitar greats but he can crank on one for sure. I love the rawness that he plays with.
Slightly off topic but Dan Rather's The Big Interview series has been excellent. I was never impressed with Rather as a news man. Heard him speak when I was in college and was even less impressed. But he has done a superb job with this series. Real standout interviews were Jack White, Merle Haggard, the Doors surviving members, Steve Miller, Geddy Lee (amazing interview), Dolly Parton. Did not like the Greg Allman or Robert Plant interviews much but that was not Rather's fault. The interview with some of the REM members was okay but it got political and Stipe never interviews well it seems to me. I think he is a genius but he always seems to trying hard to say something impressive or cool and it often comes off as insincere and not very candid. It might just be a product of his shyness.