Wings '76 was really good - welcome back Paulie! Best one I attended (for shear endurance) was the 3 shows Bruce Springsteen played at Nassau Collesium between Christmas and New Years 80/81. Even with E-Streets reputation for long shows, every one of these nights was a 4 hour plus workout (he was apparently recording the shows for a live album that never materialized, although a few songs were on the live boxset, B-sides and "Rendezvous" from Tracks). Someone did manage to get access to the tapes, and all three shows have been available in the gray market.... awesome stuff. He played those songs so much faster then.
Led Zeppelin 1970. The tour to promote the third album. What a band!! Opened up with the immigrant song. It gave me goose bumbs.