Hi Tom:
Bobby Fischer has been the player most chess has become popular throughout the history of the game, and I think is the best player of all time, by the struggle and ultimate victory over Spasky alone, is, that I only see this great player on the chessboard. I love chess and Kasparov and has surpassed his achievement. Like many geniuses, eventually escaped from reality.
Greetings
Carlos

PS: Dear Tom, my opinion on Fischer will only refer to chess chess.