Adam West's Batman himself would be really interesting. He has that old - school charm and a unique way of dealing with villains. His presence would bring a lot of nostalgia and also a different perspective on crime - fighting compared to the modern Batman.
Alfred could also be a fascinating character. He has served Batman in different ways over the years. In this fanfiction, he could be the one who helps bridge the gap between the two Batmen. He could share stories and insights that help them understand each other better, and his dry humor would add a nice touch to the story.
One possible plot could be that Batman is facing a new and mysterious villain in Gotham. While investigating, he somehow gets transported to an alternate dimension where he meets Adam West, the iconic Batman from the past. They team up to fight crime in this strange new world that combines elements of the classic TV show and the modern Batman universe.
Batman Beyond would be the most interesting. He's a new take on the Batman concept with his high - tech suit and different personality compared to the original Batman. He has to prove himself to the Justice League and show that he's just as capable, if not more so, in his own time.
The interaction between Robin and Batman would be really interesting. Robin has his own identity with the Teen Titans now, and Batman is his former mentor. There would be a lot of unspoken history and emotions. Batman might be proud of how Robin has grown, but also a bit overprotective. And Robin would be eager to show Batman that he can handle himself without his constant guidance.
Batman would be the most interesting. He doesn't have superpowers like the Avengers, but he's still a formidable hero. His presence in their world would be like a wild card. He'd be constantly analyzing the Avengers and their enemies, and his dark, brooding nature would contrast with the more flashy and super - powered Avengers.
I think Dolohov could be the most interesting. He's a Death Eater, so he has a dark and mysterious side. Meeting Hermione could be a turning point for him. His interactions with her might make him question his loyalty to Voldemort. It would be fascinating to see his internal struggle as he deals with Hermione's goodness and intelligence.
It would probably be the Shinigami. Since it's a mysterious and powerful being from another realm, its motives and actions would be really interesting to follow.
It could be Ace. Since Ace was part of Whitebeard's crew and also Luffy's brother. His role in this meeting could be very crucial. He would be like a bridge between the two different worlds of Luffy and Whitebeard. His loyalty to Whitebeard and his love for Luffy would add a lot of emotional and interesting elements to the story.
I think Sonic himself would be the most interesting. He's so different from the Pokemon world. His super speed and his attitude would really stand out. He doesn't have the typical powers of a Pokemon, like shooting fire or electricity. His way of dealing with problems, which is mostly running really fast and spinning into things, would be really unique in the Pokemon world.
Batman would probably be more dominant. He has years of experience and a deep understanding of Gotham. Batmankoff, while potentially powerful, would be new to Batman's world and would have to adapt to his rules.
It's hard to say who would be more dominant. Batman has his intelligence, combat skills, and all his gadgets. But Deadpool has his unpredictability and regenerative powers. If it's a physical fight, Deadpool's ability to keep coming back might give him an edge. However, Batman's strategic mind could find ways to outwit Deadpool in the long run.