It could be Naruto. His godlike form in Naruto already gives him incredible power. If he were to gain quirks on top of that, he would be extremely formidable. His ability to create thousands of clones and his vast chakra reserves combined with a powerful quirk would make him a top - tier character.
Sasuke might also be very powerful in this fanfiction. His Sharingan abilities, combined with a quirk that enhances his already impressive combat skills, could make him a deadly opponent. He could use his Sharingan to analyze and counter any quirks he faces, and his own unique powers would be enhanced further.
It would probably be Naruto if he's in his godlike state. With his vast chakra reserves and powerful jutsus, he could overpower most characters in the My Hero Academia world. His ability to create countless shadow clones and use techniques like the Rasengan or even more advanced forms would make him a formidable force.
It's hard to say for sure. Naruto in his final form with all his chakra and Sage Mode abilities is extremely powerful. He could potentially overpower many of the My Hero Academia characters. But All Might at his peak was also incredibly strong. His punches could cause massive destruction. However, if we consider characters like Kaguya from Naruto, with her god - like powers, she would likely be one of the most powerful in a crossover. She has abilities like creating dimensions and is almost unbeatable in the Naruto universe.
It's hard to say for sure, but Naruto would be a top contender. His ability to use the Nine - Tails' power, along with his Sage Mode and Rasengan techniques, make him extremely formidable. Plus, his experience in battles and his never - give - up attitude would give him an edge. However, All Might with his One For All at full power is also incredibly strong. His physical strength and combat experience in the My Hero Academia world are second to none.
It would probably be Sasuke. His Sharingan gives him so many abilities like enhanced perception, the ability to copy moves, and eventually the Mangekyo Sharingan powers. In the My Hero Academia world, these skills would be extremely powerful. He could easily outwit and overpower most of the heroes and villains there.
In a fanfiction setting, Bakugo might be the most powerful. His explosive quirk is already very destructive. At Hogwarts, he could learn some offensive magic spells and combine them with his quirk for some really powerful attacks. He's also highly competitive and would strive to be the best, which would drive him to master both his quirk and magic faster than others.
If we consider Kakashi, his Sharingan and wide range of jutsus make him a formidable opponent. But in the My Hero Academia world, there are also characters like Bakugo with his powerful explosion Quirk. Bakugo's aggressive fighting style and strong Quirk could put him on par with some of the stronger Naruto characters. It really depends on the situation and how their powers interact.
It's really hard to say. Naruto with his godlike powers would be extremely powerful. He can do things like create massive Rasengans and has near - unlimited chakra. But Superman in the Justice League also has incredible strength, speed, and heat vision. He can fly at supersonic speeds and is nearly invulnerable. However, if Naruto's godlike form gives him the ability to manipulate time and space like some of the Otsutsuki in his world, he might have an edge over Superman.
However, it might not be just about Naruto or Goku. A new character created through the fusion of Naruto and Goku's powers could potentially be the most powerful. This character would have the best of both worlds - the Saiyan's fighting instincts and raw power along with Naruto's strategic thinking and unique ninja abilities.
Sasuke might also be a top contender. His Sharingan and Rinnegan abilities could be enhanced by DxD magic. He could use his intelligence and combat skills along with newfound powers to become very powerful. For example, if he got a Sacred Gear that enhanced his genjutsu abilities, it would be nearly unbeatable.
Sasuke with a quirk could also be extremely powerful. If he had a quirk like Shoto Todoroki's ice and fire ability on top of his Sharingan and Rinnegan, he would be a force to be reckoned with. He could use his ice to freeze opponents from a distance, then use his fire to create powerful explosions, all while using his Sharingan to predict their moves and his Rinnegan for more advanced techniques.