Truth be told, I think I hate Windu more than any other character from the PT -- Hayden included; there's just something about overrated douchebag assholes who get purple lightsabers they don't deserve that causes something in my blood to start boiling.
So, taking that into consideration, I guess Jackson succeeded in getting me emotionally involved in his character (even if all said emotions were strongly negative) which is something none of the other characters really managed to do.