I think Naruto, Rogue, and Cyclops could be main characters. Rogue's power - absorbing ability could be an interesting element when combined with Naruto's chakra - based powers. And Cyclops could be the leader - like figure guiding their team - up against common enemies. The three of them could have a really complex relationship, with Rogue sometimes being a bit of a wildcard due to her power and Naruto and Cyclops trying to keep the team focused.
A Naruto and X - Men Evolution crossover could work in several ways. One way is through the concept of chakra and mutant powers. Naruto's world is centered around chakra, while the X - Men have unique mutant abilities. Maybe a portal could open between their worlds, and Naruto characters could be mistaken for mutants due to their extraordinary abilities. For example, Naruto's shadow clones could be seen as a form of mutant power replication. Also, the X - Men's fight for acceptance could be paralleled with Naruto's journey to be recognized in his village.
Wolverine is always a great choice. His tough - guy attitude and healing factor make him adaptable in any crossover situation. He could hold his own against powerful characters from other universes. Another good one is Storm. Her control over the weather can be a game - changer in battles. In a crossover, she could use her powers to combat foes that others might struggle with.
I think Rogue would be an interesting main character in a crossover. Her power - absorbing abilities could create some really unique situations, especially when she comes into contact with Clark or other powered individuals in Smallville. On the Smallville side, Lex Luthor could be a main character too. His devious nature and thirst for power could put him at odds with both the X - Men and Clark, making for a complex and engaging story.
Obviously Naruto and Wolverine could be main characters. Wolverine's tough - guy attitude and his healing factor would contrast well with Naruto's upbeat and determined personality. Jean Grey could also be a main character. Her powerful telepathic and telekinetic abilities would be interesting to see in the Naruto world, especially when interacting with ninjas who rely on physical and chakra - based skills.
Jean Grey is another one. Given her powerful telepathic and telekinetic abilities, she can be a central figure in crossovers. Fanfictions might explore her relationship with other powerful characters from different franchises and how her powers interact with theirs.
It could be really exciting. Picture Naruto's ninja skills combined with the mutant powers in X - Men Evolution. Maybe Naruto could team up with Cyclops and use his Rasengan while Cyclops blasts enemies with his optic beam. They'd make a formidable duo against common foes.
One possible plot could be that Sasuke, through some sort of interdimensional rift, ends up in the X - Men Evolution universe. He might initially be seen as a threat due to his powers and brooding nature. But then, he could team up with the X - Men to fight a common enemy, like a powerful mutant who wants to use Sasuke's Sharingan for evil purposes. Along the way, Sasuke could learn about the concept of mutants and their struggle for acceptance, which might change his own views on power and belonging.
Definitely Naruto himself. He's the main character of the Naruto series, so he has to be there. In a crossover with Attack on Titan, he could meet Eren. Naruto's determination and Eren's drive to protect his people could make for an interesting dynamic between them.
A plot could involve a teleportation accident that brings some of the female characters from Tenchi Muyo, like Ayeka and Sasami, to the X - Men's school. The girls' gentle and somewhat alien natures could be a contrast to the rough - and - tumble mutant environment. Jean Grey could befriend them and help them adjust. Meanwhile, the X - Men discover that there are powerful forces in the Tenchi Muyo universe that could help them in their fight against Magneto or other villains. So they embark on a journey to Tenchi Muyo's world, leading to cultural clashes and new friendships.
Hinata could be a main character as well. Her gentle yet strong - willed nature could bring a different dynamic to the story. She might be the one to initially bridge the gap between the Naruto characters and the Men in Black. And for the Men in Black side, Agent T could be a main character. He is known for his tech - savvy skills, and in the fanfiction, he could help the Naruto characters understand and utilize some of the advanced technology, while Hinata could teach him about chakra and ninja ways.