I would pick:

1. +att -def

2. +nin - def

3. +life -nin

4. either +nin/att (need to check which has better growthrate) -def/res/life or +life -att (depends which position and what team he's in)

5. +life -att

6. +life - nin

7. +att - def

8. +life -att

general rule: offensive mood = +att/nin (whichever has better growthrate and benefits that ninja more) -def/life or -res if your character has ninjutsu immunity

defensive mood = +life -att/nin OR +res -att/nin for characters which use shields

for characters which use healing effects you could use +nin also