Rank The Anti-Monitor
In Marvel Cosmics, where would A-M of COIE rank?
While goob did a good job of showing that the narration itself says A-M only had the power of several mini-universes, that's been retconned.
What hasn't been retconned, or shown for that matter, is A-M actually destroying a universe under his own power.
So, I challenge anyone to prove the Anti-Monitor, before absoring the Anti-Matter Universe, could destroy a universe under his own power and nothing more.
If you can't prove this, the A-M isn't even as powerful as Galactus.