Ruby and Church would be really interesting. Ruby is all about being positive and leading her team, while Church is sarcastic and often a bit grumpy. Their different personalities could lead to some really funny exchanges. For example, Ruby might be excited to show Church her scythe, and Church would probably make some snarky comment about how impractical it looks but then be amazed when he sees her use it.
Blake and Caboose would be an unexpected but fascinating pair. Caboose is a bit naive and simple - minded, while Blake is more reserved and intellectual. Caboose might constantly ask Blake simple questions about her world, like why she has cat ears. And Blake would patiently answer. At the same time, Caboose's innocent view of things could make Blake see her own world in a new light. Their friendship could grow in a really sweet way as they both learn from each other.
I think Tucker from Red vs Blue and Yang from RWBY would be an interesting pairing. Tucker is known for his laid - back but confident attitude, and Yang is a strong and fearless fighter. They could bond over their combat skills and exchange stories about their respective worlds.
Weiss and Sarge would make for an odd but fascinating pair. Weiss is refined, proper, and used to a certain level of order. Sarge is loud, military - minded, and often a bit over - the - top. The clash of their personalities would be comical at first, but they could learn from each other. Weiss could teach Sarge some finesse, and Sarge could show Weiss how to be more assertive in a different kind of way.
I think Axel and Yang would have a cool interaction. Axel with his pyro abilities and his somewhat edgy personality could clash and also bond with Yang, who is hot - tempered and has her own fire - based powers. They could have some great banter and also team up in battles, with Axel using his acrobatic fighting style and Yang using her brawler moves.
Weiss and Carolina could be a great match. Weiss is a refined and skilled fighter with a strong sense of duty, while Carolina is a tough and no - nonsense military type. Their different backgrounds and approaches to combat could lead to some intense training sessions and a mutual respect as they realize each other's strengths.
Another interesting interaction could be between Red Hood and Blake. Blake, with her Faunus background and her own complex views on justice, could have some really deep conversations with Red Hood. They might debate on when it's okay to take extreme measures in the name of justice.
Yang and Tucker could also work well together. Yang is strong and confident, while Tucker has his own brand of bravado. They could get into all sorts of adventures and battles, with Yang using her brawler style and Tucker with his sword and unique abilities. Maybe they'd compete for who can take down the most enemies in a fight.
I think Naruto and Weiss would have some great interactions. Weiss is from a high - class family and is very proper, while Naruto is this rough - around - the - edges ninja. Their clash of cultures could lead to some really funny and also some really deep moments. Maybe Weiss could teach Naruto about the importance of elegance in combat, and Naruto could teach Weiss about the value of hard work and determination from his own experiences growing up.
Well, for Red vs Blue, Tex is quite popular in fanfiction. She's strong, mysterious, and her relationship with Church is always interesting to explore. In RWBY, Weiss is a favorite among fanfic writers. Her growth from a somewhat cold character to a more empathetic one is a great arc. When it comes to the crossover fanfiction, Caboose is often used. His naivete can lead to some really funny and heartwarming moments when interacting with RWBY characters.
One possible plot is that a powerful and evil force is trying to take over both the RWBY universe and the Red vs Blue universe. The characters from both sides are thrown into a new world created by this force. They have to find a way to escape and stop this evil. Along the way, there would be lots of funny moments as they misunderstand each other's cultures and ways of fighting. Ruby could be fascinated by the Red vs Blue's use of guns, while the Red vs Blue guys might be shocked by the Grimm. They would gradually learn to cooperate and use their combined strengths to defeat the bad guy.
Mercy and Doc would also be a great pairing. They are both medical personnel in their respective universes. They could exchange medical knowledge, with Mercy teaching Doc about some of the more advanced medical technology in the Overwatch universe, and Doc showing Mercy some of his improvised medical techniques that he's developed in the Red vs Blue world.