This list starts and ends w/Alex Lifeson of Rush.
Just listen to the bootlegs of the '78 and '79 Hemispheres tours.
Like Pete Townshend, Alex has the magical ability to in effect be a lead instrument when in effect being rhythmn guitar.
He started off as a Jimmy Page clone, but was one of the few such guys who in effect reinvented himself to be radically different yet, retaining Page-isms in his sound.
How many guys could go from Cream/Led Zeppelin as a primary signature to venturing into Police/U2 territory so seamlessly?
Listening to those Hemispheres tour boots proves that Lifeson is one of the most unique guitarists of all time, somehow combining power chords, suspended harmonics, able to shred and be crystalline all within a few bars.
And any guy who can keep up w/the musical geniuses that are Geddy Lee and Neil Peart, and keep his head above water deserves total respect.
Some of the greatest, most concise and musical guitar solos of all time.
Check them out from "La Villa Strangiato", "Freewill", "Limelight", " The Analog Kid", "Between The Wheels". Etc x100