Hewitt would still be No.1, probably would have won 2 more slams by now.
Roddick would be 2 time Wimbledon champion
Agassi would stil be going strong, would have won lot of tornaments
Safin would have been the most talented player in the world!
Ljubicic MIGHT have won 4 tiltles in the space of three months!!
Its very funny when u think of such things. But, I, for one, am happy that Federer DOES exist. He is a fantastic player, very unique and thats why he's so special and admired, cause he plays tennis in a manner in which it was never played before! He is a boon to all juniors and future generations.