Wonder Woman could be the most vocal as well. She represents truth and justice in a very direct way. In a fanfiction meeting, she would likely voice her concerns about any actions that might go against the values of the Justice League. She would also be quick to support any initiatives that promote peace and equality, and would make sure her voice is heard when important decisions are being made.
I think Flash himself would be really interested. After all, it's about him. He'd be curious to see how the writer of the fanfiction portrays his character, his powers, and his relationships with the other members of the Justice League.
I think Batman and Robin (from Young Justice) would be really interesting. Batman's brooding and strategic mind against Robin's youthful enthusiasm.
Definitely Superman. He has the strength and the moral compass to try and understand the Hulk. He can also withstand the Hulk's attacks to a certain extent, so he could be the first to approach the Hulk and attempt to form an alliance. He might see the good in the Hulk, similar to how he sees the potential for good in Lex Luthor at times.
It's hard to say. Superman has incredible strength, speed, and heat vision. But Thor has the power of lightning and is a god. Hulk's brute strength is also a force to be reckoned with. In a fanfiction, it could depend on the situation and how the writer wants to portray their power levels.
Wonder Woman could be among the most challenged too. She represents truth and justice in a very different way compared to the others. The Joker's chaotic and amoral nature could really test her beliefs. He might try to undermine her confidence in her own values and make her question the right way to dispense justice, which would be a difficult situation for her to handle.
Miss Martian from Young Justice could be a great focus. Her powers of telepathy and shape - shifting make her a formidable opponent. Also, her experiences as a young hero trying to fit in and be accepted, especially when facing the more established Justice League, can lead to some really interesting character development and plot twists.
A fanfiction Justice League meeting might involve the introduction of a new hero. This new hero could be from a different planet or have a very unique power. During the meeting, the other members of the Justice League would be sizing up this new addition. Wonder Woman could be testing the new hero's combat skills and moral compass while Flash might be curious about their speed or other abilities.
I think Superman and Thor would be a very powerful pairing. Superman has his super strength, speed, flight, and heat vision, while Thor has his godly strength, control over lightning, and his enchanted hammer. Together, they could take on almost any foe. They could fly into space and deal with threats that are far away from Earth.
Ladybug and Batman would be an interesting pairing. Batman is all about strategy and detective work. He could analyze Ladybug's powers and find new ways to use them in combat. Ladybug, on the other hand, could bring a fresh perspective with her more light - hearted and magical approach. Their different personalities would create a great dynamic, with Batman's brooding nature contrasting with Ladybug's more optimistic outlook.
The pairing of Saitama and Superman could also be really interesting. Both are extremely powerful in their own ways. Superman has his superpowers like flight, heat vision, etc., while Saitama has his one - punch ability. They could have a friendly competition to see who is stronger, or they could team up against a powerful enemy. It would be fascinating to see how they interact given their different personalities and power sets.