Some might argue that the Scarlet Witch from the Marvel universe (which is related to Captain America's world) could be very powerful in this crossover. Her reality - warping abilities could have a huge impact on the wizarding world. But then again, the wizards have their own ways of protecting their world from such powerful threats, like powerful wards and ancient spells that have been passed down for generations.
I think Hermione would be really interesting too. She is so intelligent and knowledgeable about magic. When she meets Captain America, she would probably be very curious about his world and how things work without magic. She could be the one to try and find a way to bridge the gap between the two worlds, like trying to figure out how Muggle technology and magic could work together.
However, Harry Potter himself could also be very powerful in this crossover. He has a lot of experience with dark magic and defeating powerful villains. When combined with the unique magic of SVTFOE, he could become even more powerful. For example, he could use his knowledge of the Deathly Hallows and combine it with Star's Butterfly magic to create new and unbeatable defenses or attacks.
It's hard to say. Harry Potter has his powerful magic, like the ability to cast powerful spells and his connection to Voldemort which gives him certain powers. But Jack Sparrow has his wits and his charm. He's able to talk his way out of almost any situation and has a great deal of experience in combat and survival. So, it really depends on the situation. In a straight - up magical battle, Harry might have the upper hand, but in a situation where negotiation or outsmarting the enemy is key, Jack could be the more powerful one.
It's hard to say. Naruto has his huge chakra reserves and powerful jutsu. But Harry has the power of love and some really strong spells. However, I think Dumbledore would be very powerful in this crossover. He has great wisdom and extremely powerful magic. He could probably figure out how to use Naruto's chakra to his advantage if they were on the same side.
In a crossover, it could be argued that Harry Potter is the most powerful. His magic can do things that are beyond Batman's physical capabilities. For example, he can apparate, which is a form of teleportation, and he can use spells to immobilize or defeat his enemies. While Batman is a formidable fighter and detective, he doesn't have the ability to counteract magic directly. However, Batman's strategic mind might be able to find ways to work around Harry's magic, but in terms of raw power, Harry has the edge with his magic.
It's hard to say who would be the most powerful. Harry Potter has his powerful magic, like the Patronus charm and the ability to use the Elder Wand. However, Wonder Woman has her superhuman strength, speed, and combat skills, not to mention her Lasso of Truth. In a way, it depends on the situation. In a magical battle, Harry might have the upper hand, but in a physical combat, Wonder Woman would likely be dominant.
I think Harry Potter himself would be very powerful in this crossover. He has the experience of fighting dark wizards and his magic skills. If he was in the MHA world, he could use his magic to enhance his physical abilities like the characters with quirks. His ability to resist the Imperius Curse and his knowledge of defensive magic would give him an edge over many MHA villains.
Albus Dumbledore would likely be very powerful. His vast knowledge of magic and his strategic mind would give him an edge. He could probably outwit most of the Rosario Vampire characters with ease. Plus, his powerful spells like the Patronus Charm could be very effective against the various threats in the Rosario Vampire world.
It could be Harry Potter himself. He has defeated Voldemort, one of the most powerful dark wizards. His ability to perform advanced magic like the Patronus charm and his experience in facing great evils would give him an edge. He could also learn from the Olympian magic and become even more powerful.
I think Captain America and Batman would have some great interactions. Batman is the dark and brooding detective, while Captain America is the all - American hero. They could clash over their methods of fighting crime at first. Batman might be skeptical of Captain America's more straightforward and moral - centered approach, but over time they could learn from each other and form a strong partnership.