Wow. You guys should cool it. I usually defend you Vinny, but this was a bit over the top.

Insofar as brightest Mafia guy, I would have to say Costello for knowing when to get out. His EQ was likely also superb due to his ability to foster connections with influential individuals outside of LCN. While I know Vinny will probably have a seizure if I mention someone else, I would be remiss if I excluded Joe Bonanno. I genuinely believe those two guys could have had successful careers outside the life of crime.