Well, this is a tough one, actually. But I'm gonna have to give it to Jonathan Tyler Lester of the Red Sox.
The word storybook comes to mind when Jon Lester's lifepath is considered. A prospect riding a rocket to the Majors, struck back hard by cancer, only to return and pitch a no-hitter. Then in the sequel, he wins Game 4 of the World Series.
Lester's also been through trade rumors, and all the drama surrounding the Red Sox these last few years. Despite all this, he's been their most reliable and consistent starter. That reliability is why he won this Award.