Originally Posted by seattle_1hander
Isner beating Federer on a different surface, before Federer's recent run on hard courts mind you, has little if any bearing on this match.
Lest we forget, Mardy Fish commented that the surface in Switzerland was horrible and that it would be incredibly difficult to return a serve like John Isner's on it. You're logic is lacking and your conclusion is unwarranted.
Djoker is the greatest returner I have ever seen in my life .
I'm picking Isner.