Their powers could interact in interesting ways. All Might's 'One For All' power is more about physical enhancement within the limits of a human - like body (even though he is super - human). Superman's powers are more 'alien' in nature. If they were to exchange power - up techniques, All Might could teach Superman some of his martial arts moves, which Superman could then use with his super - strength. In return, Superman could show All Might how to better control his power output in different situations using his knowledge of his own powers which are more energy - based in some aspects.
Brightburn's powers are similar to Superman's but with a malevolent twist. When they interact, it could be that their super strength clashes in a way that causes massive destruction around them. Their flight could lead to high - speed aerial battles, with each trying to outmaneuver the other. And their heat vision could cross, creating intense energy bursts.
In a fanfiction scenario, Superman's ability to fly could give Naruto a new perspective on combat. Naruto could learn to use the airspace more effectively. He might even develop new jutsu that are based on aerial combat, inspired by Superman. And Superman could learn from Naruto's ability to sense chakra. This could help him detect hidden threats or enemies that are using some form of energy cloaking device in his own world.
Superman has super strength, flight, heat vision, etc. X - 23 has enhanced strength, speed, and her claws. If they were in a fight together, Superman could use his flight to gain an aerial advantage and X - 23 could use her speed to quickly move around on the ground. His heat vision could be used to blast enemies from a distance while she could use her claws for close - combat.
Superman's powers are mainly based on his Kryptonian physiology, like super strength, heat vision, and flight. Flash's power is super speed. If they were to interact, Flash could use his speed to create distractions while Superman takes on the more powerful foes directly. For example, Flash could run around an enemy so fast that it creates a mini - tornado, and then Superman could use his super breath to blow the enemy into a vulnerable position.
In a more complex interaction, Alita's ability to interface with technology could be used to enhance Superman's powers or protect him from certain threats. For instance, if there was a villain using some sort of electromagnetic pulse to disable Superman, Alita could use her own technology to create a shield around him. And Superman's X - ray vision could help Alita in her investigations, like finding hidden mechanisms in a complex mechanical structure she is trying to understand. Their powers would create a unique synergy that would make for an exciting crossover fanfiction.
Superman would probably be polite but a bit reserved when meeting the Avengers. He'd introduce himself simply and state his purpose, which is usually to help. Iron Man, on the other hand, might be a bit skeptical at first and make some snarky remarks. Thor would likely be more open - minded and see Superman as a worthy ally. Hulk might just be interested in seeing if he can take on Superman in a fight.
Superman would likely be very respectful of the Avengers. He'd be curious about their powers and how they operate as a team. Iron Man, on the other hand, might be a bit wary at first, trying to analyze Superman's powers and find any weaknesses. Captain America would probably admire Superman's strong moral compass and see him as an ally right away. Thor might be interested in testing his strength against Superman's. Hulk could either be aggressive towards Superman or see him as a fellow powerhouse.
Superman has a wide range of powers like super strength, flight, heat vision, etc. Brightburn also has similar powers but uses them in a more sinister way. Superman's powers are often used for the greater good, while Brightburn's are for his own, often dark, purposes. So, in a comparison, their power levels might be similar, but the application is very different.
It might be a story where they meet in a multiverse - type situation. All Might could be visiting Superman's world for some reason, like to learn about different forms of heroism. At first, there could be misunderstandings due to cultural differences between the two universes. For example, All Might's very public and flamboyant hero persona might be a bit strange to the more reserved Metropolis citizens. But eventually, they find common ground in their desire to protect the innocent and start to work together on some local threats in Superman's world.
Mereoleona's fire - based powers and Goku's ki - based powers could create some really interesting interactions. For example, Mereoleona could use her fire to surround Goku, but Goku could use his ki to either dissipate the fire or even absorb some of its energy to power up his own attacks. Their powers might also clash in a way that creates new types of energy blasts that neither of them expected.