If this is Pre Retcon MM, Ill go with him. The guy was almost on the level of Classic Beyonder, who was millions of times more powerful than the entire Marvel Universe combined. That MM was the second most powerful being in existance, in any reality or dimension, any universe, and by Alot.
Well isn't the Primal Monitor the true top power in DC, meaning the Presence is second best? And if the GEB is supposed to be half of the Presence essentially... yeah, I'd say PR MM takes this handily.
That's something i still would like an answer to, myself. The last thread ended up in a draw where they each represent different aspect of the DC writing process.
I'll give this to GEB because he was wrecking shop just from waking up from a sleep, i believe. MM despite able to stand up to PR Beyonder was still of very very little threat. GEB's status as regard to the Presence whom is at the moment arguably = to PM (the DC version of Beyonder) should give MM a good fight and probably win the majority. The theory is obviously contingent on whether PM = Presence, though, lol.