KNUBB
WHITE RONDO
IMO, he's a better man defender. He's 3 inches taller and about 30 pounds heavier, yet roughly the same speed. If I can only have one superstar on my team, I take CP3. But if I'm choosing a point based around (team) defense, then I pick Dwill.
The only time CP is ever a liability in defense is if he gets posted up. Which I guess where the 30 pounds play a big role, but as far as perimeter D I would give that edge to CP.