Best player after the Roddick, Fish, Blake generation!? Are you joking me?
I'd rank Isner, Harrison and even Sock with a higher potential. Querrey has shown time and time again that refuses to step up in the big moments.
Isner has better serve, but his groundgame is nowhere near Querrey`s best level. Harrison is just overhyped kid, who had his moments of glory as he is really one of the best in this weak generation. But not that good all in all.