AO:
1st play dunno
2nd play saved all

3rd play: killed all possible to kill, where that was not possible I didn't save them, only saved that absolute needed ones.
AE:
Same thing
MO:
Same thing
Stranger:
Just finished the game once, I tried to capture all alive but I don't remeber if I really managed that or not, think I did.
Sorry to expand this to MO and Stranger too
