2006 Roger Federer vs 1984 John McEnroe
1984 was McEnroe's best year on the tennis tour, as he compiled an 82–3 record and won a career-high 13 singles tournaments, including Wimbledon and the US Open. He also was on the winning US World Team Cup and runner-up Davis Cup teams.
In 2006, Federer won three Grand Slam singles titles and reached the final of the other, with the only loss coming against Nadal in the French Open, 6–1, 1–6, 4–6, 6–7. This was the two men's first meeting in a Grand Slam final. Federer defeated Nadal in the Wimbledon Championships final, 6–0, 7–6, 6–7, 6–3, which was the start of their storied rivalry. In the Australian Open, Federer defeated Marcos Baghdatis, 5–7, 7–5, 6–0, 6–2, and at the US Open, Federer defeated Roddick (2003 champion), 6–2, 4–6, 7–5, 6–1. In addition, Federer made it to six ATP Masters Series 1000 finals, winning four on hard surfaces and losing two on clay to Nadal. Federer won one ATP 500 series event in Tokyo and captured the year-end championships for the third time in his career.
So who is better in your mind??????
GO Roger Federer, Nick Kyrgios, Borna Coric, Vasek Pospisil, Kei Nishikori, , Milos Raonic, Jerzy Janowicz, Grigor Dimitrov, Dennis Novikov and Bernard Tomic and Mikael Ymer
Thiem will be No 1 by May 2018
Nick Kyrgios will be No 2 by Sep 2018
Mikael Ymer will be No 3 by Dec 2018
Alexander Zverev will be No 1 by Dec 2018