3. John Jaso, C, TBR .263/.372/.3780, .341 wOBA, +4.2 UZR, 2.5 fWAR, 2.4 brWAR A catcher with plate discipline skills so good he bats lead-off. In fact, he walked well more than he struck out (59 BB to 39 K), giving him the best K/BB ratio in the majors (min. 400 PA). I'm a big, big fan.
2. Brian Matusz, P, BAL 175.2 IP, 4.30 ERA, 4.05 FIP, 4.51 xFIP, 2.7 fWAR, 3.1 brWAR I picked him to win it before the season, and though he had a rough start, he came on strong enough at the end of the year to jump into the discussion. If Matusz posts the kind of strike-out and walk numbers he had in the second half this year (7.9 K/9, 3.1 BB/9) in upwards of 200 innings next year, the O's should have an OK #2 starter on their hands. And if he improves some - which is perfectly reasonable - then, well, that would be awesome.
1. Austin Jackson, CF, DET .293/.345/.400, .333 wOBA, +4.2 UZR, 3.6 fWAR, 2.5 brWAR Really, there are plenty of names after Jackson who could have been listed in the 2 and 3 spots (Danny Valencia, Brett Cecil, and Neftali Feliz just to name a few). The top spot seemed pretty easy though, given that Jackson lapped the field in fWAR. Sure he's never going to post a .396 BABIP again - without which his value would have plummeted (give him a still really, really high .350 BABIP, and Jackson's bat would have been well below average instead of a touch above). I said I wasn't giving future potential much weight though, and what Jackson did on the field makes him the AL's top rookie in my opinion.
Quick NL ballot:
3. Jamie Garcia
2. Buster Posey
1. Jason Heyward
The Senior Circuit had the much better rookie class in 2010. Heyward's a beast (post-season notwithstanding).