Ok. I've seen Springsteen live scores of times going back to his days at local bars in Asbury Park (and at least once every 2 years since then to date). He represents more than half of the top 10 shows I've ever seen. (Elton John and John Lennon for a set at MSG being #1).
But I saw a guy a few times--for the first time years ago because I had read an article in which Bruce said that he was the best live performer on the planet and that he (Bruce) could not measure up. It was Prince--- who was never a real favorite of mine. Only had and still only have 2 of his albums and don't play them much on the big rig. But live-- the most amazing live performer I've ever seen. Great guitar player often while doing splits, dancing---coordinated moves in tandem with of all of his players. It was like watching James Brown on steroids only with less sweat.