I doubt there's youtube clips for these...
But:
Rory Gallagher's on the Irish Tour 74 (album) version of Tattoo'd Lady. I saw him play this song 5-6 times, and I have many other live versions of it, but I never heard him top this one...
Jimmy Page's on the original Song Remains The Same soundtrack album version of No Quarter. The remastered one might sound better, but it's been hacked and shortened...
Jimi Hendrix's on the "Concerts" version of Stone Free (not sure you can still get this album), the short solo on the studio version is reputedly Jeff Beck's favourite recorded guitar solo (or was 25 years ago anyway!), but this live version has that plus this solo improvisation where you cannot hear him stop or pause to "think" about what to play next...
gulp, all my favourite solos were recorded in 1974 or earlier... :lol: