I don't think the position of the Lords of Kobol in the religious heirarchy was ever really established beyond "the blessings of the Lords of Kobol" invocation Adama would use.
Given Larson's own membership in the LDS church, it could be easily inferred that the Lords of Kobol - the BOL - were the Mormon equivalent of Catholic saints, which are virtuous humans gone to their reward, the "next level" of existence, capable of miracles, indeed are god-like beings (but beings less than God).
I don't profess to understand (much less embrace) Mormon doctrine, but I had two brothers in that church at about that time.
Also Iblis is clearly the parallel of the Christian Satan - in fact, "Diabolis" is one of the names Apollo uses.
I am
Dawg