Re: Why Khan?
Khan's appeal as a villain is that he was a superhuman focusing his superabilities to destroy ONE person, and his only normal quality -- his ego -- was his downfall.
I don't think so. The episode Space Seed
is pretty popular and he had only met Kirk.
"...the most elementary and valuable statement in science, the beginning of wisdom, is I do not know." - Lt. Commander Data, "Where Silence Has Lease"