Have to say Djokovic. His '11 season had NO weakness, honestly. Fed always had a BH problem and Nadal exploited that. Nole almost had no weakness in 2011 and if he played like that in 2012, he wudve destroyed Fed at Wimby, we all know that. However, Nole's level was always going to be more difficult to sustain because of how physical it is.
Fed was actually really lucky in the 04-07 years as the surface was suited to his game (that was apparent because he seldom won on clay whereas Nadal and Nole can win even on their weaker surfaces). Also, his opponents were joke compared to today's Nadal, Nole and Murray. Plus we have Delpo, Tsonga, Berdych and Ferrer (who is great on clay).
Fed has won only 5 GS since these players have arrived (in 5 years which is not that impressive for GOAT player)
have to say i don't agree. yes, federer has a backhand problem since the modern game is ruthless on single handed backhands. but it is also ruthless for those with other weaknesses, and every player has them. if djokovic did not have weaknesses he would not lose. the truth is djokovic doesn't have the best serve of the best 4, doesn't have the best movement (maybe he is equal with nadal on raw speed), doens't have the best slice (he has the worse), doesn't have the best volleys, the best overheads, the best half volleys. he is not the best at offense, he is not the best at dealing with changes of pace, and maybe some other stuff. and djokovic versus nadal at wimbledon is allways different than versus federer at wimbledon. nadal is not a natural grass player. we saw the way federer and novak moved on their game, didn't we? federer moved elegantly, as allways, novak looked awfull (and this not a glitch in his game, this happens a lot). still, kudos to him for his season, very impressed.
now, saying federer is lucky because the surfaces suited him is just plain wrong (at best). unless you accept that nadal and novak are also lucky that they slowed down the surfaces. if you do, them we should agree that this is pointless talk.
the opponents talk is even crapier than the surfaces one, and you should be embaressed. 'those' players are still beating younger opponents, and:
berdych is 27 years old, older than nadal, novak and murray; ferrer is 30 years old; tsonga is also 27, older than the other guys in top 3; del potro has a terrible h2h against federer, why talk about him?
PLUS, federer is, to my knoweledge, 31 years old, so the fact that he is NUMBER 1 IN THE WORLD makes your comment senseless. hes has won more than anyone else in history, so your are really saying that post prime federer just winning 5 GS in the last 5 years in terrible? it's the same amount as novak's GS, LOL. the different is that federer has 12 more... and nadal, tsonga, berdych and ferrer, the players you oh so like and think are a great threat to federer's greatness were already here. novak and murray came on tour strong on 2007, so that's 6 seasons, now. look at their ages.
the only player to have 'arrived' in the last 5 years ago is del potro and look at federer's h2h in grand slams (and look at his h2h with murray, too)...