Five Brewers prospects made the top 100 -
Alcides Escobar (51)
Brett Lawrie (57)
Mat Gamel (58)
Jeremy Jeffress (72)
Angel Salome (79)
Not too shabby - 3 in the top 60 and 5 in the top 80, although they have 0 in the top 50 according to this ranking.
Other NL Central teams and the number of players on the list:
Cubs (2, 1 of whom is Samardzija, who is already with the big club)
According to BP the Houston system is barren, as their top prospect is #76 on this list.
The highest rated players in the NL Central are Pedro Alvarez, 3B for Pittsburgh (4) and Colby Rasmus, OF for St. Louis (8).
Matt LaPorta ranked #30, if you're interested.