I've never met him/seen him live, but I've always felt he came across the most down to earth of the "supporting cast".
I would like to meet him, he seems like "one of us". I remember seeing him interviewed in his office once - packed to the ceiling with comic books and Trek memorabilia
I'd love to find out more about his time on TOS. I mean someone (Coon?) was trying to make him a star, or thought he'd be a hit with the viewers. The show was Kirk/Spock/Bones/Chekov for a while there in Season 2. Then suddenly they seemed to give up on him and he drifted into the background.