It would have to be the Experience for me.
The closest I ever came to seeing Jimi was when he played at the Isle of Wight with (amongst others on the bill), Bob Dylan - I desperately wanted to go but instead had to go with my first wife to visit her mother. A weekend at the mother-in-law's instead of the legendary IoW concert.
I could have cried.
I only lived about a mile away as the crow might have flown from where he died. I can clearly remember walking down the road and seeing one of those 'Een 'Stannah' (Evening Standard newspaper) boxes with big black letters saying, 'Famous pop star dies'. I was absolutely gutted when I found out who it was.
(Oops, just realized that I answered the question from the other topic.)
Voodoo Chile for me, all the way.
RIP Iron Man
Rock On and keep the Faith