Who would be the most powerful character in a 'jojo marvel crossover fanfiction'?

It's really hard to say who would be the most powerful. Saitama from One Punch Man (if we were to include him in this wild crossover thought experiment) would probably be a top contender just because he can defeat any opponent with one punch. But in a more traditional Bleach - Marvel crossover, if the Living Tribunal from Marvel was involved, it would be extremely powerful. It has near - omnipotent powers and oversees the entire Marvel multiverse. However, in Bleach, Yhwach has extremely powerful abilities as well, like the ability to see the future and rewrite it. So it really depends on the context and how the crossover is set up.

Vegeta in his Ultra Ego form also has a claim to being one of the most powerful. He can absorb and use attacks against his enemies. However, in the Marvel side, characters like Sentry with his near - limitless power could also be a contender. In a crossover, it would be about who can adapt better to the other's fighting style and power system.

It's hard to say for sure, but many would argue that it could be Superman. His powers are almost limitless - super strength, flight, heat vision, etc. In a crossover, he would be a force to be reckoned with against most Marvel characters. However, characters like Thor with his godly powers and the ability to control lightning could also give Superman a run for his money.

It's hard to say for sure, but many would argue that it could be Superman. His super strength, speed, flight, and heat vision are incredibly powerful. He has been shown to be able to move planets in the DC universe. In a crossover, he could be a dominant force, but he also has weaknesses like kryptonite that could be exploited.

It could be Jon Snow. If he has a Stand in the fanfiction, combined with his already proven leadership skills and combat abilities, he would be a force to be reckoned with. His ability to come back from the dead might also be related to his Stand powers in some way, making him even more formidable.

It's hard to say, but Thor could be a really powerful character in a Halo x Marvel crossover. He has his godly powers, like control over lightning and super strength. In the Halo universe, not many things can stand up to his power. He could easily take on Covenant forces or even some of the Flood with his hammer Mjolnir.

I think Giorno Giovanna would also be a great choice. His Gold Experience Requiem has such complex and powerful abilities. In a crossover with a strategy game, for example, he could use his stand to manipulate the environment and enemies in really creative ways, like turning objects into living things to aid in battles or solve puzzles.

Doctor Strange with a Quirk like Eri's Rewind. He could not only manipulate time and space with his magic but also use the Rewind Quirk to reverse damage or even reverse the actions of enemies. This combination would make him a very versatile and powerful character, able to heal allies and counterattack enemies in ways that would be very difficult to defend against.

It's hard to say for sure, but Goku would be a very strong contender. His ability to keep increasing his power level through training and reaching new forms like Super Saiyan God and Ultra Instinct makes him extremely powerful. However, characters like Franklin Richards in the Marvel universe have reality - warping powers that could also be very hard to defeat. But if Goku were to fully master Ultra Instinct and combine it with the power of the Dragon Balls, he could potentially be the most powerful.

Iron Man would be really interesting. He could analyze the Bakugan technology and come up with some amazing upgrades for his suit using Bakugan elements. His witty personality would also create some great interactions with the Bakugan characters.