Theros gods:Heliod: Lawful Evil (hideously petty tyrant)
Thassa: True Neutral
Erebos: Lawful Neutral (is obsessed with fatalism at the expense of nearly everything else, but is not entirely devoid of compassion as in "Emonberry Red")
Purphoros: Chaotic Neutral
Nylea: Chaotic Good/Neutral (depends on how hypocritical she is)
Ephara: Lawful Good
Phenax: Chaotic Evil (atypically for a
character, he is entirely driven by his own sadistic whims)
Mogis: Chaotic Evil
Xenagos: Chaotic Evil
Karametra: Lawful Good (her Lawful side is what seperates her from Nylea)
Athreos: Lawful Neutral
Keranos: Chaotic Neutral
Pharika: True Neutral (is the goddess of medicine, after all, and her followers do heal people)
Iroas:
Unknown, because he is essentially a non-character. Can run the gambit from Chaotic Good to Lawful Evil.
Kruphix: Neutral Good (ultimately the most benevolent of the Theros deities)
Zendikar Gods:Kamsa/Emeria: Lawful Good
Ula/Mangeni: Lawful Neutral
Cosi/Talib: Chaotic Neutral or Chaotic Evil
Iona & Linvala: Unknown, possibly ranging the Lawful alignments.
Innistrad GodsAvacyn: Lawful Good or Lawful Neutral. Remember, she was basically a robot following orders. After corruption she became some flavour of Chaotic or Lawful Evil, since she began massacring people because she honestly thought they were evil.
Griselbrand: Neutral Evil or Chaotic Evil
Ormendahl: Neutral Evil
Withengar: Another non-character. Probably ranging the Evil alignments
Shilgengar: Neutral Evil
Kralmar: Chaotic Evil