1. Stephen Strasburg
2. Buster Posey
3. Dustin Akley
4. Yonder Alonso
5. Josh Bell
HM: Domonic Brown, Starlin Castro, Mike Leake, Jenrry Mejia, Thomas Neal and Jose Tabata
I think the top three on that list are pretty much unassailable.
However, I was very surprised by Alonso at #4. The 22 year-old broke his hamate bone this year, limiting him to 84 games, over which time he hit just nine homers. In 49 games he hit .303/.383/.497 in the FSL and then .295/.372/.457 in 29 games in the AA Southern League. In 23 games in the AFL, Alonso hit a pedestrian .267/.353/.395 with two homers, three doubles and a triple. While he didn't show much power, he did draw 12 walks against 15 strikeouts.
Davis, meanwhile, split his year nearly evenly between the FSL and AA, smacking 20 homers on his way to a .298/.386/.524 year. In the AFL, Davis hit .341/.394/.565 with four homers and seven doubles.
Davis is a better defender. Alonso showed more patience in the AFL, but drew only slightly more walks in AA. Davis hit 20 HR to Alonso's 9 in the regular season. Wrist injuries badly sap a hitter's power even after he's returned to the lineup, so Alonso's power potential will become much clearer in the coming season.
To rank Alonso this much ahead of Davis requires some combination of the following:
1. a belief in that Alonso will hit for much more power than he did in 2009
2. a belief that Davis' tendency towards striking out will drag his entire offensive game down at higher levels.