So you are saying that RA was more durable.
RA had more QS 27 at 82% than Kershaw 25 at 76%, threw less walks in spite being a knuckleball pitcher and logged more innings pitched. He also had more complete games, shut outs and his K/BB ratio was 4.26 to 3.63.
Then if you throw in that Kershaw's home/away splits were pretty lopsided you can see why the votes went the way it did.

