Although I already posted a list of people or bands that I wish I had seen, I would like to add an addendum.
Even though I saw him live before, I would really like to see the real Bob Dylan.
What I mean is that I would like to see Dylan play all his songs as they were presented on the records I own. I know that after playing the same songs for 50 years there is a tendancy to want to improvise a bit, but when I saw him the songs were literally unrecognizable.
Probably the most disappointing concert I have ever seen.