Towny
Hall of Fame
Again, how many matches players have won in a season doesn't necessarily determine their level of play. It's not a bad indicator, but it's not always accurate. Wawrinka went 39-17 in 2014, but that has no bearing on his exceptional AO level.On hardcourt and grass 2015 Djokovic has 2/3 good opponents to 2006 Federer's nothing
Besides, it's your opinion that having 3 decent opponents is tougher than one exceptional one, an opinion I'm not sure many will share. Rafa went undefeated on clay that year and was in the middle of his 81-match win streak. Likewise, Novak clearly had it far tougher on clay in 2012 going up against peak Nadal as opposed to 2015.