Those who argue Trout should win will point to his 10.7 WAR as the sole reason he should win the award. According to baseballreference.com, Robinson Cano at 7.6 and Justin Verlander at 7.4 are also ahead of Cabrera, who sits at 6.9. Though I believe wins above replacement has its use, I don't think it tells the correct story in this instance.
Trout leads the AL in runs scored with 129 and OPS+ at 169. It is fair to factor into the equation that he missed almost the first two months of the season before he started playing regularly for the Angels. He has hit .324, 30, 83. Cabrera, of course, leads the AL with his .331, 44, 139 but that does not tell the whole story. If the argument was based on WAR VS the triple crown catagories, it would be a logical one for the sabermatrician to make. However, Cabrera also leads the league with his 377 total bases and OPS with 1.002. Trout's OPS is .958 and thats a stat that cannot have been increased with more playing time.
Cabrera also will lead the AL with his .608 slugging percentage, beating Trout who is at .561. Hamilton is at .580. The other sabermetric stat Trout leads the AL with is OPS+, yet Cabrera is two points less, 167-169. So, the fact that Cabrera has a higher OPS (1.002-.958), SLG (.608-.561) and the OPS+ is so close should prove once and for all that the first triple crown winner since 1967 will take home the award for the AL's top player.