Stu Ungar was an amazing player both in poker and gin. No one could touch Stu when it came to the mental part of the game. There are a lot of close 2nds (as far as, who is the best poker player) but Stu gets my vote as the best poker (and gin)player ever. Pick up his book "One of a Kind" and you'll see for yourself. It's my favorite book......ever!!