It would be a great rivalry between say Nadal,Roddick,Devchenko,Djokovic,Haas,Blake ,Hewitt etc if Federer would not have been on the scene.Unfortunately he nips it in the bud when he steamrolls through them.Nadal has his number for now but the advantage is slowly dwindling.He would not have matched Federer on the hard courts with due respect to him.My call is 15 - 16 grand slams for the guy but dont think he will ever win the French.