Fair enough. I happen to think despite his physical problems that Fed loves playing Nadal now because he returns so deep and gives a lot of short balls.Fed's play has dropped markedly since Wimbledon. No reason it shouldn't, he's 36. Nadal's play has improved for most of the year.
Had they faced I suspect Nadal would have won quite comfortably.
I don't think Nadal is playing that much better than he was in Miami where he looked good before he faced a quality opponent. It just so happens this year the biggest threats to him mugged it up before facing him. Ironic.