His head to head record is a negative on his resume, but every great player has some blemish on his resume, coupled with strengths or pluses. He has won a ton outside of his losses to Nadal, and he has beaten Nadal at Wimbledon. Everything must be considered. Nadal was quite young and maturing when he lost at times to Federer at W and elsewhere as well, but Federer did play extremely well to win those tourneys.