And an honorable mention to Michael Schenker's solo on "Rock Bottom" (on UFO's Strangers in the Night live LP) and Jimmy Page's "Since I've been Loving You" (on Zeppelin III).
Kick ass selections !!!
Agree with your whole post. "Machine Gun", for god's sake. LOL I can still listen to SIBLY off the 3rd and feel the vibes from it.