Interesting... I would have pegged Magweed as Lawful Good, as she's repeatedly stressed the importance of respecting rules and behaving herself. She took the responsibility of being a Princess seriously, and adhered to the behavior that such a large responsibility demanded.

Griffin I'd put at Neutral Good if I'm assigning a different ranking to each, as he's more prone to sneak off and get into trouble, seeing as how the rules didn't ever apply directly to him. However, it's tempered with concern for his sister. I could see classifying him as chaotic though.

Sam I think fits the Chaotic Good role because she seems to have split from following any rule set other than her own belief in how to help people. I don't see her being overly concerned by the law when faced with what she sees as the greater good... and that goes for rules set down by the Legion or Mumphrey as well.