First...
Nicklaus.
Second...
Fuzzy Zoeller is no more a "racist idiot" than he is an Oompa Loompa.
Professional and high level amateur golf are rich with tradition. These traditions are bigger than any one man and that includes Tiger Woods. If Tiger were unable or unwilling to continue to play professional golf there would be no damage to its luster. While Tiger has certainly raised awareness and made golf "cool" thats a double edged sword. Denim shorts, t-shirts and those that wear them are much less likely to know who Fred Couples, Paul Azinger, Lee Trevino, Sam Snead, Walter Hagan and Bobby Jones are much less anything they may have accomplished.