When Young Justice meets the Avengers in fanfiction, Zatanna could show Doctor Strange some of her magic spells. They could discuss the differences between their magical practices. Cyborg from Young Justice might be interested in Vision's technology and how he was created. And there could be some friendly competitions between the two teams, like a race between Quicksilver and Kid Flash to see who is faster.
The interactions would be diverse. Batman from Young Justice's world might have a serious conversation with Captain America about leadership. They both lead their respective teams. Artemis could befriend Black Widow and learn some new combat skills from her.
The more experienced Avengers like Captain America would likely take on a mentoring role with the younger members of Young Justice. For example, he could give advice to Robin on leadership. Meanwhile, the more powerful Avengers like Thor might be a bit intimidating to the Young Justice team at first. But characters like Superboy could be eager to prove himself against Thor in a friendly sparring match.
The Avengers are used to a certain level of professionalism and order. The Young Justice team, on the other hand, has a more youthful and sometimes impulsive energy. This could lead to some friction at first. For example, Thor might find the Young Justice members' jokes and banter during a serious mission a bit off - putting. But as they face challenges together, they would start to understand and respect each other's ways. Hulk could even form an unexpected bond with a Young Justice character who isn't afraid of his power.
Batman would likely be very cautious around the Avengers at first. He'd be observing their tactics and technology. Thor, on the other hand, might be curious about the Justice League's powers, especially Superman's strength. He might challenge Superman to a friendly test of strength.
The interactions would be complex. The Guardians are more of a ragtag group compared to the Avengers and Justice League. Star - Lord might try to charm Lois Lane, which could annoy Superman. Thor could have a friendly competition with Shazam over who has the better lightning - based powers. And Hawkeye could be in awe of Green Arrow's archery skills and ask for some tips.
Some characters like Superboy might be a bit jealous of Naruto's natural charisma and the way he can easily make friends. But as they face challenges together, they would start to respect each other. Naruto would be fascinated by Superboy's strength. The more magical characters in Young Justice might be interested in how chakra is related to magic in Naruto's world. And Naruto would be eager to learn about their magic. There could be a lot of cultural exchange between the two groups, which would lead to some really interesting character interactions.
Supergirl's no - nonsense attitude towards fighting villains would be an interesting contrast to the more youthful and sometimes impulsive nature of the Young Justice team. Aqualad, as the leader, would have to figure out how to incorporate Supergirl into their mission plans. She might be used to taking charge in her own battles, but she would have to learn to work within the team structure of Young Justice. And the team would have to adjust to her presence. For example, her super - strength could accidentally cause damage during training sessions if she's not careful. But over time, they would all grow to respect and rely on each other.
Ben would likely be the wild card. He'd be excited to show off his alien forms to the Young Justice characters. Aqualad might be a bit skeptical at first, but Robin could be intrigued by Ben's tech. Superboy might see Ben as a rival in terms of power.
Ghost Rider is a very intense and dark character. The Young Justice characters, like Robin, would be initially cautious. Robin might try to analyze Ghost Rider's motives and powers. Aqualad, on the other hand, would be more concerned about how Ghost Rider's presence affects the balance in their world.
Captain Marvel would probably be a bit of a mentor figure. He has a lot of experience and power, so he could offer advice to the Young Justice team. For example, he might teach Superboy how to better control his strength or help Miss Martian with her telepathic abilities.
The characters would interact in interesting ways. Captain Marvel, being a powerful hero, would likely be a source of inspiration for the Young Justice team. He might interact with Robin by sharing his knowledge of detective work, as Captain Marvel also has to solve problems on his own. They could bond over their quick thinking and ability to analyze situations.