He leads the majors in wins. He is 2nd in ALL of baseball in ERA. In his last 14 starts he is 11-1 with an ERA of 1.07. And he is doing this at Wrigley Field. Why do you think Kershaw is only 11-6 despite an ERA almost as good as Arrieta's? Dodger stadium is a pitchers park. Anyone who says Arrieta isn't the best in baseball right now simply has no credibility.