The more noble characters might initially be skeptical of Lelouch. They would see his methods as underhanded, especially if he used his Geass to manipulate. But as time went on and they saw the results of his actions, like uniting kingdoms against a common threat or bringing about a more just rule, they might come to respect him in a way, albeit grudgingly.
One possible plot could be Lelouch using his Geass power to manipulate the power - hungry lords in Westeros. He might start by influencing the Lannisters, creating chaos within their ranks and using their downfall to his advantage, perhaps to gain a hold on the Iron Throne.
Naruto would be a very different kind of character in Game of Thrones. His bright and optimistic personality would contrast sharply with the often - dark and cynical world of Westeros. He would likely be seen as an oddity, but his skills would earn him respect. His loyalty to his friends would be something that some in Westeros could admire, while others would try to use it against him.
The Hulk might be seen as a sort of monster in the context of Game of Thrones. Just like how they have direwolves and dragons, the Hulk could be another mythical - but in this case, suddenly very real - creature. He could be shunned by some and perhaps worshipped as a god by others, depending on how different regions of Westeros react to his existence.
He might become more cynical. In the brutal world of Game of Thrones, he'd face a lot of backstabbing and treachery. His idealism from the MCU might be tempered, and he'd become more calculating.
A character like Arya Stark might initially be very cautious. Given her training as a Faceless Man, she would be skeptical of new powers. But she could also see the potential for using the Rinnegan's powers for her own vengeance. She might try to use the power of seeing chakra points to target her enemies more effectively.
Well, Aragorn is from a very different fictional universe than Game of Thrones. But if in a fanfic, he might bring his elvish connections which could be a huge advantage in the power - hungry world of Westeros. He could form alliances with the more honorable houses like the Tullys perhaps, based on his own code of ethics. And his experience in battles against great evils would give him an edge in the many wars that plague Westeros.
Napoleon would be an interesting addition to the Game of Thrones universe. His ambition would surely play a big role. He might see the Iron Throne as a goal worthy of his pursuit. Given his ability to inspire loyalty in his troops, he could gather a strong following among the people of Westeros. He could also bring new military tactics that no one in Westeros has seen before, which would give him an edge in battles.
Naruto would likely adapt by trying to bring peace. He'd see the wars and power struggles in Game of Thrones and try to use his talk - no - jutsu to make people see reason. He'd probably befriend some of the underdogs, like the smallfolk, and try to give them hope. His ninja skills would also come in handy for self - defense and getting around quickly in the different terrains of Westeros.
In fanfiction, Aragorn could potentially be a king from a far - off land who arrives in Westeros. He might bring with him a different style of leadership and a sense of honor that is somewhat different from the lords and ladies of Westeros. He could get caught up in the power struggles, especially if he realizes the threat of the Iron Throne being misused. Maybe he would try to form alliances with the more noble houses to bring stability to the land.
Hashirama would likely be a very powerful force in the Game of Thrones world. His skills as a shinobi and his ability to control nature could give him an edge. He might try to use his powers to bring peace, similar to his goal in his own world, but would soon realize the complex and cut - throat politics of Westeros.