why did you pick the us open? (arthur ashe, blue clay, slow these days etc?)
Paris isnt lightning fast as it used to be (even a year ago, let alone 2 years ago), and he seems to be doing fine, which seems to indicate that he is doing well on average-fast courts. I think that if you would put him on real fast courts, such as Rotterdam, he wouldnt be nearly as good. His return of serve isnt THAT good, believe it or not.
Its hard to explain, but I just dont think he is suited for Wimbledon. Sure, Nole isnt suited for Wimbledon either and he won it, but Janowicz doesnt have the suitable groundstrokes to be a top grass court player.
USOpen is blue clay as of late, but its still the fastest grand slam in my opinion, which is why I went with it.