After thinking it over, Fire will almost definitely get second, meaning we're going to have quite a few more matches against them in the future. There, I feel a Golem deck will help more than a Glory one, so I think the Photons are a better option (I don't think they have much use as of yet, because if we do take 2 Immolation decks, they are both a bit strewn, and I'd rather have 1 well-built one.
Final choices:
Deck 1: 4 immolations, 2 golems
Deck 2: 4 otyughs, 1 gravity pillar, 1 momentum
Deck 3: 2 morning glories, 4 Photons
Deck 4: 4 gravity pillars, 1 gravity shield, 1 lightning