The odds of Federer winning compared to Woods are astronomically higher. Lets not lose our heads and say Federer's achievements are equal.
Winning 9 Grand Slam tournaments having played in only 30 of them is a pretty steep accomplishment. Both guys are absolutely brilliant. Whats amazing about Federer is he seldom ever gets hurt and misses time in a very demanding sport like tennis. Golf isnt very taxing on your body.
Federer played in his 4th match in 5 days yesterday.