Engel Beltre, in the Midwest League: .295/.331/.446
The MWL is a pitcher's league, and low-A is generally populated by guys who are a year or two out of high school, international signees, and lower-light college draftees in their first pro season.
Beltre is 18 years old...if he were American, he'd be in the 2008 draft.
Two high school hitters went in the top three picks in 2007, and they both project as CIFs. Mike Moustakos, who went #2 overall, is hitting .198/.260/.260 in the Midwest League right now. Josh Vitters, who went #3 overall, is hitting .214/.214/.429 in just 4 games in the MWL, after posting an aggregate 281 OPS in 14 games in the minors last yaer.
Among other first round high school hitters from 2007...Matt Dominguez hasn't debuted yet (after posting a 429 OPS in 15 games last year). Jason Heyward, probably the most comparable player to Beltre, overall, is hitting .310/.352/.440 in the CarolinaSally League. Kevin Ahrens is hitting .285/.385/.425 in the Midwest League. Devin Mesoraco is hitting .219/.310/.270 in the GCL.
You really have to feel good about what Beltre is doing, when you see he is hitting as well, or better, as the high first round high school hitters from last year, most of whom are around a year older than him.