I've often wondered what impact Fed would have had if he were born just a few years earlier and played at his '04-'07 level on the faster conditions. Fed/Sampras deserved to be more than a one-and-done rivalry. Fed/Agassi before 'Dre's downturn would also have been exciting.
It's good to be G.O.A.T.; 4+ years of the TTW wars!