Superman can also be quite popular in these fanfictions. His strong moral code and incredible powers create an interesting dynamic when paired with Danny. They might have different approaches to handling threats, which can lead to some great character interactions.
Danny Phantom himself is obviously very popular as he is the main character from his own series. His ghost - fighting abilities and his dual identity make him an interesting addition to the Justice League universe.
I think it could be Superman. Superman is all about truth and justice and he would likely see the good in Danny. Also, they both have super strength in a way. Danny has his ghostly strength and Superman has his Kryptonian strength. They could bond over protecting the innocent.
I think Superman would be the most likely. Superman is known for his kind heart and open - mindedness. He would probably see Danny as a young hero in need of some guidance and friendship. He wouldn't be too quick to judge Danny based on his ghostly appearance or powers.
Danny Phantom is for sure the main character on the saving side. On the Justice League side, all the classic members would probably be there. Superman, being the symbol of hope and having super strength, heat vision etc. Batman, the Dark Knight with his gadgets and detective skills. Wonder Woman with her Lasso of Truth and superhuman strength. The Flash, who can move at incredible speeds. Green Lantern, who can create constructs with his power ring. And Martian Manhunter, with his shape - shifting and telepathic abilities. They all could be in danger and Danny would have to figure out how to save each of them based on their unique powers and vulnerabilities.
Obviously, Danny Phantom is one of the main characters as the title implies he's the one doing the pranking. And then, members of the Justice League like Superman, Batman, Wonder Woman, Flash, etc. would be the ones being pranked.
I think there's no clear - cut winner in a 'danny phantom vs justice league' fanfiction. Danny Phantom is a powerful ghost - hero in his own right. He has unique powers that the Justice League may not be familiar with at first. But the Justice League is a team of some of the most powerful heroes in the DC universe. If the story is written in a way that Danny has some sort of ace up his sleeve, like a new power or a powerful ghost artifact, he could potentially defeat the Justice League. On the other hand, if the Justice League is well - prepared and uses their combined skills effectively, they could overpower Danny.
Obviously, Danny and Dan themselves are very popular. Danny as the main hero and Dan as his dark and complex counterpart are central to many stories. Jazz, Danny's sister, is also popular as she can provide a different perspective and often gets involved in Danny's ghost - fighting adventures in fanfiction.
One popular pairing could be Danny and Robin. They are both young heroes with a lot of skills and a sense of justice. Their different backgrounds, Danny's ghost - related and Robin's more traditional hero training, could create an interesting dynamic in a relationship.
The interaction between Danny Phantom and Superman could be fascinating. Superman is this all - powerful being, and Danny is a half - ghost with his own set of unique powers. Superman might initially see Danny as a bit of an oddity, but as they work together, he'd come to respect Danny's tenacity and the fact that he fights against some really spooky and powerful foes in his own world. And Danny would be in awe of Superman's raw power, yet also show him that there are different kinds of strength, like his ability to manipulate ectoplasm.
I think Danny and Batman would be a really interesting pairing. Batman is all about strategy and detective work, and Danny with his ghost powers could provide a different kind of assistance. Danny might be able to use his intangibility to access places Batman couldn't, and Batman could help Danny with his combat skills and planning.
Batman is often a very popular character. In fanfiction, he can be portrayed in different ways, like a more nurturing mentor figure to the Young Justice team or as a master strategist leading the Justice League in complex battles.