The best concert I have seen was Billy Joel in 1977. It was right after The Stranger came out but before it became a hit. He was playing in a wonderfully acoustic auditorium at the U. of Michigan and it was filled with long time fans of his music. He played his butt off and did about 6 encores.
The next best one was probably a Jimmy Buffett concert. Any of his are fun to go to but this one around 1992 was special because I was needing a release from work. It was like therapy as it was like an island party. Great atmosphere.
I saw the Police when they had their reunion about 5 years ago(?). Superb musicians and they did a great job playing their songs. Stewart Copeland is a fantastic drummer.
I got to see Jerry Jeff Walker at a bar in Austin in the early 80s and it was a great show and a lot of fun.