John F Kennedy. He had a great mind as well as great wit. He had gravitas that came from having survived death in the Pacific during WWII. I just barely remember him, but I still dearly miss him.

JFK was truly brilliant. He was also the best and brightest of our time. He was just the right person at the right time. It shows how extraordinary getting the balance just right is, that we have not seen his like since he was taken from us too soon.