Odin gets 2-A, but with a "Varies" mechanism. Can varies tiers have three things listed? Because I think it would be good to have the 2-C for the tier others will scale from from (AKA "Normal Skyfather" tier) but I also think a 3-C tier is reasonable. Could we do something like "Varies, from 3-C at the lowest, 2-C normally, up to 2-A at peak"? Egyptian Gods also get 2-A, but I think that was handled in another thread.
Other Skyfathers and the Hell Lords get 2-C via scaling from various feats about the Nine Realms, and a Hell Lord feat of merging several Universe-sized realms. I think Surtur w/ Twilight Sword and Eternal Flames gets 2-A as well, as he does have a 2-A feat.