It's hard to say. Harry has his mastery over death, which gives him a lot of power. But the Winchesters are tough and experienced hunters. I think it would depend on the situation. If it's a battle against a magical foe, Harry might have the upper hand. But if it's a more physical fight or something related to hunting skills, the Winchesters could be more dominant.
I believe that neither would be completely dominant. Harry has his own set of magical powers, like being the master of death, which gives him unique abilities. However, the Winchesters have been through countless battles and have a deep knowledge of the supernatural world. In a fanfiction, they would probably learn from each other. For instance, Harry could teach them some advanced defensive spells, while the Winchesters could show Harry how to handle a real - life encounter with a dangerous spirit without relying solely on magic. So, rather than one being dominant, they would be more like equals, each bringing something valuable to the table.
One possibility is that the Winchesters and Harry might have some initial misunderstandings. The Winchesters are used to their own ways of dealing with the supernatural, which are very different from the magical world of Harry. But as they get to know each other, they could combine their skills. Harry could use his ability to communicate with ghosts in a different way than the Winchesters do, and together they could solve mysteries that neither could solve alone. Maybe they would face a powerful dark wizard who has made a pact with demons, and it would take both their sets of skills to defeat this new threat.
I think Captain America and Dean Winchester would be an interesting pairing. Captain America's sense of justice and old - fashioned values would contrast and complement Dean's more rough - around - the - edges attitude. They could bond over their experiences in combat and their loyalty to their respective teams.
His character would develop in multiple ways. Firstly, he'd become more resourceful. The Winchesters often find themselves in tight spots, and Harry would have to learn to use whatever he has at hand, including his magic, to get out of trouble. Emotionally, he might become more guarded as he realizes the harshness of the world they live in. But at the same time, he could also develop a stronger sense of loyalty towards the Winchesters, seeing them as his new family.
It really depends on the context. If we consider Lucifer's power as a fallen angel and his millennia - old experience, he might seem more dominant. However, Harry has his own brand of courage and the power of magic at his disposal. So in a magical battle, Harry could hold his own.
I think Harry Potter and Batman would have an interesting interaction. Batman is known for his intelligence and detective skills, and Harry has his own brand of cleverness and magical knowledge. They could compare notes on how to solve mysteries and fight crime in their respective worlds.
Definitely Harry Potter himself. His magic and his sense of right and wrong would bring a new dynamic to the Winchester world. And then there's Dean Winchester. His tough - guy attitude and his skills as a hunter would be really cool to see interact with Harry. Sam Winchester too, with his intelligence and research skills, could be very interesting when combined with Harry's knowledge of the magical world.
It really depends on the situation. In the magical world of Harry Potter, Harry has a deep understanding of the magical laws and how things work there. If the situation revolves around magic - based problems, Harry could be more in control. However, Sesshomaru has a natural dominance in his presence and his combat abilities. If it comes to a physical fight or a situation where raw power is needed, Sesshomaru would take the lead. So, in different scenarios, either could be more dominant.
Obviously, the Winchesters, Sam and Dean, are main characters. They are the well - known hunters in the Supernatural world. Then there are often other hunters that the fanfiction writers create or bring in from other parts of the 'Supernatural' universe. These could be hunters with special skills like a tracker who can find any supernatural being by just a small trace left behind.
In the 'Harry adopted by the Winchesters' fanfiction, there are a lot of possibilities. Harry could bring his knowledge of potions and magical artifacts to the Winchesters. This could be useful in dealing with some of the more dangerous supernatural threats. The Winchesters, on the other hand, could teach Harry about survival in a more 'normal' but still dangerous world. Their skills in tracking, weapons handling, and understanding human nature could be invaluable to Harry. Also, the relationships between Harry and the individual Winchesters would be complex and evolving. There could be moments of conflict as they come from very different backgrounds, but also moments of great bonding as they face various challenges together.
It's hard to say who would be the most dominant. Itachi is extremely powerful with his Sharingan and his strategic mind. But Sasuke has his own set of powerful abilities and a thirst for power that could make him a dominant force. Naruto, on the other hand, has his Nine - Tails chakra and his never - give - up attitude which can also make him very dominant in different situations.