Ok, obviously we all know who we would invite over for dinner, allow to watch our children, or generally be in the same room with, but the Wages of Wins people make the compelling argument that Robinson was a better center for his entire professional career than was Shaq*.

http://dberri.wordpress.com/2008/09/07/the-best-nba-center-in-my-student%E2%80%99s-life/

*Even though Shaq is technically still on a professional basketball team, he is not, currently, engaged in anything that I would call a "career" nor does he look like a "professional" "athlete."