Cabrera, 30, in 2012 became the first player to win a Triple Crown in 45 years, and he followed that feat up with an even better season. He won his third consecutive batting championship (.348), and was second to Davis in home runs (44) and RBIs (137). His on-base percentage (.442) was up nearly 50 points, slugging (.636) 30 points, and his OPS (1.078) nearly 80 points.
And he did all that despite playing through injuries the final three months of the season. The last month was especially bad, playing through a groin injury that would’ve sent a healthy majority of players to the disabled list.
For more information, see Tony Paul, "'He's the best:' Tigers' Miguel Cabrera wins second straight AL MVP award", Detroit News, November 14, 2013.