According to classical D&D (2nd-3rd edition), aligments are going to go this way...
=Lawful Good (Crusaders are Lawful, Angels are Good...)
=Neutral Good (Fireflies seem Neutral Good to me, especially the way they produce either quanta of the Lawful Good element or the Chaotic Good element. Everything else in air is True Neutral. Celestial Owls and Celestial Eagles are good too.)
=Chaotic Good (Seraphs are Good, everything else is either neutral or chaotic.)
=Lawful Neutral (Logic and Science are Lawful Neutral. Moreover, golem-like constructs and mercenaries or guards are considered Lawful Neutral in typical RPGs. Pharaoh and Anubis are considered Lawful Neutral too.)
=True Neutral (Both of these elements seem to combine aspects of every aligment.)
=Chaotic Neutral (Adrenaline and Feral Bond are chaotic, Druids are any Neutral aligment, animals are neutral. Entropy is Chaotic Neutral by definition, though it tends to evil much closer than it tends to good)
=Lawful Evil (Psions must be Lawful Evil because classic psionic monsters like Illithids are Lawful Evil. Immortals also seem to be tyrants who rule mortals from their distant realms. Also, most creatures encountered in the Ethereal Plane are evil.)
=Neutral Evil (The common aligment for any Undead creature is Neutral Evil.)
=Chaotic Evil (If vampires were human-like I would say Lawful Evil, but the savage nature of these bat-like creatures seems Chaotic Evil to me. Moreover, Gargoyles are often Chaotic Evil in classical RPGs and Devourers, if intelligent, must be Chaotic Evil too.)
