mxy owning spectre with a snap
mxy controlling para-zone, basically taking over the dark horse cosmology
mxy gaining access to all space, all time, all worlds of dark horse, not bounding by the cosmology of one company
No one. In Marvel (Pre-retcon Beyonder comes closest), Valiant and Image there is definitly no counterpart to Mxy in terms of power. So we'd have to look in the DC multiverss, and tbh I cant think of anyone, besides other 5d imps.
No one is beating Mxy in feats.
The only way we know people are above is when he tells us so.
But he’s also a liar, and also participates in stories for the lulz.
__________________
I am God's mighty fist. I am God's strength made manifest.
Sig by: Skeets, S.S, thesilverspider, Sir SKEETS Alot
Yeah, it seems all versions of Mxy are one and the same, Mxy pops up from world to world and (sometimes takes different appearances) to bother Superman
Which, should make WORLD'S FUNNEST canon despite being an ELSEWORLDS. Though is it just canon for Mxy(and presumably Bat-Mite),or canon to all involved is the question. Though I don't know how much it'll matter whether it was the real Spectre or not after they destroyed a multiverse fighting then undo it with a snap.
__________________ Bluewaterrider: "I'm surprised that a Skyfather like Zeus defeated Hulk when Zeus' Top-Tier son Hercules has lost to Hulk."
Emperor Joker(a n00b with Mxy's powers) casually overtook the Spectre entity, transformed him into a parakeet, and stuffed him in a bird cage(he humiliated the entire Quintessence roster in a similar manner.)
Lkz(a lower-level 5D Djinn) beat/imprisoned Spectre without any noted effort.
Brainiac was absolutely terrified of Mxy's "incalculable" power, to the point where he wasn't convinced that even a reborn Perpetua could defeat him(and Mxy was weakened at the time secondary to the Source Wall breaking.)
Then you have Mxy himself(and Bat-Mite) killing-off multiple iterations of Spectre during WF... Which tracks perfectly with the above showings.