When it comes to Grand Slam titles, Swiss star Federer has 17, with five in a row at the US Open from 2004-2008, which gives him the title of the best tennis player in history. While Nadal has won 13 Slam championships, including eight at the French Open and a 2010 US Open win to finish a career Grand Slam. Federer can't compete right now at Nadal's level, because of the age difference, however the younger Federer was almost unbeatable he reached the longest time overall at the No. 1 ATP Ranking, He was also able to win almost every Wimbledon tournament he has played, this is a great achievement because Wimbledon is supposed to be the most competitive, and hardest Major to win out of all four of them.
When it comes to their head-to-head rivalry, Nadal has won 21 times to Federer, but only 10 are for the 32 year old Federer and the 27-year-old Spaniard owns a 7-6 edge on hardcourts. Some could say Nadal is better than Federer, because being about 5 years younger, Nadal has accomplish almost everything that Federer has, with only one record missing the number of Grand Slam titles however, Nadal still has the energy, and strength to reach that record as for Federer is becoming harder and harder to win a major title, because of his age, also Nadal has suffered from many injuries in his back, and in his knee, and it's arguable that Nadal hasn't reached Federer's record because of his injuries.
To conclude there are good arguments for both players, there is a constant rivalry between the Federer fans and Nadal's. Maybe when Federer retires Nadal will overpass his achievements. But for now there is no doubt that for now Federer has overcome Pete Samprases record and is the best player in history.
When it comes to their head-to-head rivalry, Nadal has won 21 times to Federer, but only 10 are for the 32 year old Federer and the 27-year-old Spaniard owns a 7-6 edge on hardcourts. Some could say Nadal is better than Federer, because being about 5 years younger, Nadal has accomplish almost everything that Federer has, with only one record missing the number of Grand Slam titles however, Nadal still has the energy, and strength to reach that record as for Federer is becoming harder and harder to win a major title, because of his age, also Nadal has suffered from many injuries in his back, and in his knee, and it's arguable that Nadal hasn't reached Federer's record because of his injuries.
To conclude there are good arguments for both players, there is a constant rivalry between the Federer fans and Nadal's. Maybe when Federer retires Nadal will overpass his achievements. But for now there is no doubt that for now Federer has overcome Pete Samprases record and is the best player in history.