Not sure if you've been asked this before or not, but here's a battle that'll rattle your webs, Ramma. Superior Spider-Man vs. The Batman Who Laughs.
As in all VS matches there is no prep time, no help, no outside interference and both combatants are trying to kill/incapacitate the other as quick as possible.
So in this instance there is only one absolutely clear winner
Otto would be on laughing boy in the blink of an eye and would just straight up pull/punch his head off. Too fast, too furious.
With prep time would be a completely different outcome though.








