Guys, I've finally gotten my hands on the Berserk manga, and holy shit have I been missing out. I really didn't expect the whole thing to live up to its hype, but it really ******* did. To coincide with this, I also recently got my hands on the Evil Dead comics, and holy shit does this MU need to happen right ******* now.
These two are literally the same character, while also being completely separate individuals. Their plots oddly mirror each other with the whole demon theme. Their angst around having SERIOUS survivor's guilt and the need to distance themselves from others is bizarrely similar. They even have the same ******* aesthetic of having medieval prosthetic arms! It is actually uncanny how alike they are.
At the same time, one's a dark humored, dead serious, loner-type hero, while the other is loud, brash, and never takes anything seriously. If they ever met, I think they'd immediately dislike each other because of how outwardly different the two are. Their banter would be excellent, because them getting into a fight in-character isn't that big a stretch. The choreography could be plenty creative too, just based on how each character fights in their series. Also, this is by far Guts' most fair match-up, mostly based on the fact that I don't know what tier Ash could even be put at.
(Separate tangent, but their respective demons even possess the people they try not to get attached to, thus further hammering in how they can never get close to anyone, otherwise they'll get them killed. Jesus Christ, make this match happen!)