Baseball Prospectus: Cubs Top 10 Prospects....

Here is the list for Baseball Prospectus:
1) 3B Josh Vitters
2) SS Starlin Castro
3) P Hak-Ju Lee
4) OF Brett Jackson
5) P Andrew Cashner
6) P Jay Jackson
7) P Chris Carpetner
8) P Chris Archer
9) OF Kyle Burke
10) 2B/SS Ryan Flaherty

So in this list a lot of the Cubs top prospects are pitchers but the hitters are coming around. It actually is even 5 pitchers and 5 hitters.

Other peoples list of Cubs top prospects:

Fangraphs:
Andrew Cashner - RHP
Starlin Castro - SS
Josh Vitters - 3B
Hak-Ju Lee - SS
Jay Jackson - RHP
Chris Carpenter - RHP
Ryan Flaherty - INF
Dae-Eun Rhee - RHP
Logan Watkins - 2B
John Gaub - LHP

Baseball America:
Starlin Castro - SS
Brett Jackson - OF
Josh Vitters - 3B
Andrew Cashner - RHP
Jay Jackson - RHP
Hak-Ju Lee - SS
Logan Watkins - 2B
Chris Carpenter - RHP
Ryan Flaherty - IF
D.J. LeMahieu - SS-2B

Pretty much all the lists have the same prospects in them but in different order. I think Baseball America has the best list but that is my opinion and could be wrong.