Kratos vs The Immortal God Emperor of Mankind.

Since it seems that Kratos has the power to control time itself, he could possibly defeat the IGEOM, then there is the IGEOM himself, who is no pushover, who can flay someone just by looking at them, from what I’ve heard.

I think the foes they fought are pretty telling. Kratos foes are on an earthly level, in that the have complete control over specific elements on earth. The Chaos Gods are Galaxy level threats, in that they influence the WH galaxy. When the Emperor Killed Horus, he terrified all 4 of the Chaos Gods, so while he didn't actually fight them he must have been packing some serious heat to scare them. The Emperors decaying body is said to be holding the chaos gods at bay (limiting their direct interaction with WH universe). He is also thought to be the beacon for the tyranids. So I'm leaning towards the Emperor. I'd guess Kratos is somewhere below a Primarch and closer, or just above high level Librarians, Chapter masters, Champions of Chaos, or chaos sorcerers, all of which can take out some pretty powerful daemons.

The Immortal God stomps!

Emperor stomps. He's in a complete other league.

The Emperor stomps with utter ease. This is a ridiculous match-up.

Mismatchhhh