make sure you give your DMC attack points...well, mine likes to score, at least...
I keep MC, ML, MR balanced
AM_ get 2 to 3 points higher in attack
ST get 10 points higher in attack
DM_ get 2 to 3 points higher in defense
D_ get 5 points higher in defense
I never add points to attack for GK
I also keep P&M as high as the highest stat.