Apparently Primal Monitor > The Presence = GEB > Original Mandrakk > CAS (he won due to some other kind of interference or plot or something > Second Mandrakk
I've never really cared for Moore's work. Some of it is good (Swamp Thing for instance)- but imo, Morrison plainly and simply blows him out of the water.
There's a difference between the Supreme Being of DC, and the Presence. The Supreme Being(s) is/are the actual writer(s) of the stories we read (ie. Morrison/Carlin, as they've been depicted.) The Presence/God, however, is a fictional 'character' the Supreme Being writes in his stories, who is obviously less powerful than his RW creator; but still more powerful than anything else in DC. That said, if we take Rann-Thanagar: Holy War at face value, the Presence/God was WELL aware of the original multiverse when it was first begat- as it created Synnar specifically for the purpose of spawning creation.
However, even the aforementioned infinite multiverse was so insignificant to the Primal Monitor (germ-esque) that it did not even know the multiverse existed until well after it was established. This, of course, is why it created the first 'probe' (Monitor) to scan what it considered a 'flaw'. Point being: the Primal Monitor seems to encompass a whole lot more than the Presence- and they most certainly are not one in the same.
Personally, I've always equated the PM as the canvas --the medium-- through which the Supreme Being(s) (the writers) are able to illustrate their thoughts. The mind of the writers made manifest, if you will. Just my opinion.
I feel the GEB has to be as powerful as the Presence or greater. I remember reading an old comic where spectre and a bunch of other people. (etirgan & fate was there) trying to prevent GEB from emerging through this portal. There were a bnunch of demons and monsters trying to prevent GEB along witht he Spectre but what was coming through was a size of a mountian. They said it was but a finger or fraction of the GEB and no one was able to stop it. Not sure how that ended. BUt basically GEB aint nothing to **** with if you aint a legit supreme being.
Moore is too bitter IMO or at least thats what I get out of a lot of his work. It's refreshing if you haven't read anything like his work before but it gets repetitive.
DC's hierarchy is a clusterf@!# of epic proportions. From my point of view, we don't have enough information to determine whether the Primal Monitor is greater than the Presence. He very well might be, or he might even be the Presence.
It all depends on whether you believe the germ statement to be indicative of greater power than stated omnipotence (albeit with a nod in Lucifer to the writers as creators).