@GalacticStorm, Galan, WWK
I can't comment on the ZH Parallax scans, I don't read much DC. I just thought he was basically Green Lantern Prime. But if GS is right and all he did was "apply pressure on a choke point" if you will, then his feat isn't impressive at all.
If Galan is right and he remade the entire DC multiverse using nothing but his own power, then he obviously soloes the whole crew.
Regarding the PF, I posted scans from Marvel in another thread stating :
a) a multiverse is a collection of 616 and all parallel universes (what if's, alternate earths, pocket dimensions, etc...) confirmed on panel and in handbooks
b) the M'krann Crystal exists on all planes of reality in the multiverse simultaneously (it's been called "the nexus of all realities"😉 and this is confirmed on panel and in handbooks
b) the PF home plane is inside the Crystal (confirmed on panel and in handbooks)
That means there isn't a PF of Earth 616 or a PF of Earth 1254. There is only THE PF of the White Hot Room at the center of the Nexus of All Realities that sends parts/aspects of it, into the infinite number of universes that make up the multiverse.
Meaning the PF is multiversal (confirmed in a handbook) and all it's alternate universe showings count (both high and low). So it's at least capable of universe level destruction at a minimum. In fact some of the VERY RARE on panel universe level destruction feats not involving a plot device (HotI or UN) in Marvel are done by the PF and no other abstract or "God".