also honestly i feel like Zero from Drakengard 3 and Darth Vader would probably, if you flung them at each other, get along surprisingly well
*after* they attempted to kill each other, ofc
but after the brawl they'd probably be chill. sit around a campfire discussing their favourite ways to stab shit to death, etc etc. while mikhail tries to hide behind a tree about 1/6th of his size staring warily at vader and octa makes lewd jokes