It's RPS time...
Berdych is rock
Ferrer is paper
Federer is scissors
Berdych is more "linear" a player and doesn't hit as many creative angled or spin shots that get Ferrer out of position. Ferrer is able to make him hit that one more shot to win the point and that wears Berd down, physically and mentally.
Ergo, paper covers rock.
Berdych is bigger and rangier than Ferrer and gets to many shots Federer uses to put away or set up for the putaway vs Ferrer. Ergo, rock crushes scissors but scissors cut paper.
Despite all of life's bumps and bruises, I'm still committed to making this world better one smile, one laugh at a time, every day!