Gotta go with Todd Herzog, winner of Survivor China.
He executed a pretty flawless game. There were points where he should have been eliminated, but as the days went on he managed to swing by to the end. Love Courtney and Amanda, but he played a more better game than those two. Such a shame he is in the mess that he is in right now, and I hope he gets better.
(Okay I know this one is short, but I don't usually go for more intelligent people. :P)
Most intelligent player?