Deagonx:
Do you have any workable suggestions for how we can fix our DC Comics scaling?
I think it's important to examine the cosmologies in context. DC might be a mess of retcons, but thankfully many of those changes to the multiverse happened in real time, or can be worked into previous stories. The change from an infinite multiverse, to a single universe, to 52 universes, back to a full infinite multiverse
were all actual events and changes that the cosmic beings observed. Now when we look at older vertigo characters like Lucifer, the Presence, the Endless, etc, their main feats take place during a period of infinite universes, and beings like the Presence have had their role upgraded in recent times (the Presence and the Source being described as the top beings above Super Celestials) and bring their associated scaling with them (the Presence's sons Lucifer and Michael)
I think particularly in the case of Perpetua, ignoring the numerous descriptions of her destroying universes one by one and saying that her multiverse has 52 universes would be exaggerating her power. Her sons scale to her, the Monitors scale to her son Mar Novu, so on and so forth. If you want I can provide what I think would be appropriate scaling in context for various characters, but it will take me some time to make sure it's airtight and substantiated by scans.
I think for characters in multiple cosmologies or who have had a consistent role (such as the Source) it's best to use the most recent cosmology, adding in older cosmology if it doesn't conflict directly with new information (for example, the Presence once created the multiverse, but now his role is supervisory, but since he's still present in the current canon he should scale to the newest information)
The same way a Darkseid Avatar can exist within a Universe, but his true form can collapse the Multiverse if it falls upon it.
The collapse of the multiverse was due to a singularity/black hole at the center, not because of the presence of Darkseid's true form. That was damaging the multiverse and he was trying to pull the multiverse into the black hole, but it wasn't simply that the Multiverse couldn't handle his truee form.
Perpetua is the same. Her power within the Multiverse has a certain limit, but in her natural form, she created the Multiverse and all its domains: the Positive Matter Multiverse, the Sphere of the Gods, the Anti-Matter Universe, and the World Forge/Dark Multiverse.
Her ability to create the multiverse was due to an endowment of creation given to her by the Presence/Sourrce, even the energies such as the Sphere of the Gods were entrusted to her, it's not an innate quality of her power.
If we apply Morrison's stuff to Snyder's, then 1-A Perpetua is perfectly accurate; the issue is that Morrison's cosmology has been retconned, which can be seen as simply looking how different the 5th Dimension is between both, so putting up a thread (preferably staff only so it doesn't suffer from as much derailment as this one does) to separate the current cosmology from Morrison's is the logical way to go.
This is most logical, in my opinion. I think characters who are brought into new canon and should scale to the newest cosmology. For example, the Presence and Source were still mentioned and implicated in current canon, so we don't necessarily need to confine them to storylines they were more prominent in.
Wait, what? Are people really going to say different cosmology for different writers? How does that work exactly? It's not Morrison comics or synder comics but dc comics. If that's the case then lucifer morningstar or the Presence should not be 1A because different writers have different interpretation, like in 2000 the Presence is one who created the Universe and not perpetua. Like are people going to retcon all of the consistency of the previous dc Cosmology because just one writer is stupid?
The cosmology changes in the comic itself, it's not simply retcons. But the writer isn't being stupid by changing the cosmology. The newest cosmology updates the old and changes it. There have been innumerous changed to the cosmology over the years. The creation of "The Endless" in Sandman is changing the cosmology. The creation of the Monitors in Brave New World changed the Cosmology. It's the nature of the verse.