Sure, so let’s have a conversation about it.
Vertigo’s presence, Lucifer and Michael and all the Sandman titles as well as swamp thing and Constantine and related characters are all part of DC.
It’s true there is many creation stories but the primary two are the magic one with Endless/Lucifer/Spectre by Gaiman Carey and other and the cosmic one done by Kirby/Byrne/Wolfman/Morrison.
Morrison loosely tried to make sense of it.
And now Snyder has retooled it even more.
But we know that the Presence/The Source/ The Overvoid are all the same thing, or named pieces of the same thing.
And we know that Yahweh is what the angels call The Presence, or at minimum, the face it shows to them.
One major cosmology for the magic side and one for the cosmic side. (Not including the somewhat meta side that both of these cosmologies actually spawn from Superman.)
Then for purposes of scaling we have to go from there. Which can be a bit more difficult with Sandman characters as it’s largely all fairy tales, fables and metaphors rather than cosmic stories.
So where we do we put Sandman, especially when it’s mostly fables and whatnot?
Well, we look at his interaction and influence of DC.
Well he put most of his power into his artifacts, although he’s not entirely powerless, 12 stones, 1 crown, and a bag of sand.
The ruby which was allegedly the most powerful of the stones found it’s way to Dr Destiny while Morpheus was captive in Vol 1 and then Dr Destiny corrupted it, and when Morpheus confronted him- during their fight over it, the ruby broke and the power went back to Morpheus.
But a small piece of that Ruby’s power also went into Dr Destiny.
Dr Destiny is both able to do to small scale reality warping through dreams without a ruby at all, but also created his own ruby, the Materioptikon and infused most of his power into that ruby.
How powerful is the Materioptikon?
Well, it’s enough to create entire parallel realities/timelines and then overlap them/rewrite them onto the current one. But because it’s flawed it does damage to the entire spacetime continuum.
That’s a fraction of a fraction of a fraction and so on, of Dreams power.
So how do we scale Lucifer when he has the power of the Morning Star and his wings? Do we agree that he’s mightier than Sandman, when even Dream says he’s more powerful than himself?