I voted Bonanno. Even though mobsters had it easier in the early days when it came to law enforcement, they still had to deal with each other. Bonanno was able to take over a family at just 26 and maintain power for about 30 years. He made some blunders in the 60s, but was still wily enough to come out unscathed and retire.

SonnyBlackstein outlined in an earlier post why Massino doesn't get the vote. While he did rebuild the family, when the heat was on they all folded like a house of cards.