And since we're really not concerned about SOS but opponents' pitching quality, Oakland was second in the AL in team ERA in 2012, Seattle was 4th, and Texas was 7th. The White Sox were 9th, Royals 10th, and Twins and Indians the worst-pitching teams in the AL. So every one of LA's divisional opponents pitched better than any one of Detroit's.
Again, I would have voted for Cabrera myself. But SOS is not a good argument for either Cabrera over Trout or Detroit over the LAA.