Baseball America has published Top Ten rankings by position of the top prospects in the minors, according to them. Some interesting rankings:

Catcher - Matt McBride (5th)
A little surprised here...haven't looked at the numbers lately.  I thought he was having a fine year but wasn't tearing it up or anything. FYI, Max Ramirez is 7th.

1B - Jordan Brown (5th)
Again, a little surprised. Big question here is if the doubles power will translate to home run power.

3B - Wes Hodges (7th)

SS - Cabrera (3rd)

CF - Barton (9th)

RH starter - Miller (9th)
Injuries obviously hurting this ranking.

LH starter - Lofgren (4th)