Top 5 guitar jams

Anything with Duane and Dickey............

funkadelic (maggot brain) 10 mn of smoking guitar solo.
Dire straight
Stevie ray V.
Juan Martin
....

Hear are are some of my favorites in no particular order:

Dreams - The Allman Brothers. Duane's slide is truly magical.

Train Kept a Rollin' - Aerosmith. Rumor has it that Dick Wagner and Steve Hunter are playing the serious solos.

Goin' Down - Jeff Beck Group. Jeff pulls out all his tricks on this one.

Santana- Soul Sacrifice. Great music from one of the best.

Jimi Hendrix - Stone Free. Live from "The Jimi Hendrix Concerts" double album set. Just mind boggling what he can do.

As an added bonus, how about Alvin Lee's playing on Woodchopper's Ball?

I can put in a vote for "Green Grass and High Tides" off the cuff.

I saw Dylan and his band a few years back. The songs were of secondary importance. When they jammed, it didn't matter what song they were playing, they were tight and like a machine in a groove that could just keep on going....

Neil Young and Crazy Horse have been known to get in a groove from time to time as well. The Greendale CD is a prime example of Crazy Horse going on and on in various grooves that draw the listener in over time.