The Band--The Last Waltz
Allman Brothers Live at Fillmore East--This version of Stormy Monday has the best live back-to-back (organ in the middle) guitar solos ever recorded. Kinda hard to play as well...unless you are Duane and Dickie, that is...
Nothing wrong with most any of the others listed here as well...pretty good cross-section of musical styles, tastes, and genres.
Cheers!