I would say so. Consider the following: IMHO, Federer has basically sown a generation of players so much better than those previous single-handedly. He appeared in 10 straight Grand Slam Finals in the space of 3 years and 17 Straight semi-final appearances in 4. Not to mention 5 straight Wimbledon titles and coming devilishly close to 6 (foiled by Rafa who IMHO wouldn't be as great a play without Fed). He has won 12 Grand Slams in the space of 5 years. So far that is 12/23. Not counting 2003 thats 11/20. He's won Grand Slams more frequently than when he doesn't. Also he has smashed Jimmy Connor's #1 world ranking by 77 weeks. Compare 237 weeks to 160. He was halfway to doubling Connor's record. He was essentially invincible on all surfaces except clay. Now the likes of Djokovic and Rafael Nadal are dethroning him. I don't doubt that eventually break the record for most GS. It will be at a much faster rate than Sampras got his (he was 14/52 over 15 years). I actually did my research on this one. My challenge to you is find another player that you think is the greatest of all time and present solid evidence as to why.