Hmm, I think most would agree that Harden is worse defensively than Westbrook, but comparing either of of them to Anthony on defense is a disservice to both. No disagreement that Anthony is horrible defensively. But I think you are looking at this one game and making a judgement of Westbrook that may not be fair. He probably is exerting more energy on the offensive end because his team needs the scoring to come from him, thus not leaving as much energy to expend on the defensive end. He was also more focused on offense tonight, probably, because he wanted to keep his triple-double streak alive.