1. Miguel Cabrera – The most consistent hitter in baseball right now also happens to qualify at third base. He won't steal a base, but that also reduces his injury risk. Since 2004, he has never played fewer than 157 games and has averaged 34 homers and 116 RBI. Cabrera's career batting average is .318.
2. Ryan Braun – Whether or not he was ever on steroids, it's obvious he doesn't need them. Braun's posting a 40-HR, 24-SB season with two weeks to go and hitting .312. This follows a 33/33 year in 2011 where he hit .332. Braun seems to have a lot of nagging injuries, but has played at least 150 games every year of his career (except for his rookie season when he got called up in June).
3. Mike Trout – Despite spending the first three weeks of the year in the minors, Trout has 27 homers, 45 steals and 116 runs scored. He's also hitting .329. That he just turned 21 means there could be further growth, assuming there's still anything upon which to improve.