2 of the other teams in the conference finals got there by mostly setting a lot of screens to force mismatches and isolate them with their superstars, and the Warriors did more than their fair share of that too. The Knicks probably won't be able field a team that runs an offense like the Warriors and Celtics do to maximize the scoring potential of a guy like Klay or other role players; he can't spend most of his time running off of screens if every guy on the court can't pass like every player on the Celtics and Warriors can. I'll give your durability, but I think Butler is the better defender and that's with having a bigger workload than Klay has. I'm not looking at Butler as a guy to just go get buckets either, he's a decent facilitator and can get others involved, he's moderately high usage, but no where near as high as some of the other star players in the league. I won't pick Butler over Klay every time, the situation matters, but in general he's a way better player.