One of the best is 'Action Comics #1'. It introduced Superman to the world, with his iconic powers like super strength and the ability to leap tall buildings. This story set the foundation for the Superman we know today.
Some are the best because they introduced new elements to Superman's character. For instance, stories that explored his relationship with Lois Lane added depth. His attempts to keep his identity secret from her while also being close to her were really interesting.
In Superboy Prime crossover fanfiction, one common theme is his struggle with his identity. Since he comes from a different reality, when he crosses over, he may face challenges in fitting into the new world. He might also clash with other characters who don't understand his motives or his power level. Another aspect is how his presence can change the existing power balance in the crossover universe. Writers can use this to create intense battles and complex relationships between characters.
A good Superboy Prime fanfiction often has a strong character exploration. Since he's a complex character, it should dig into his motives, his insecurities, and his potential for change.
Well, a popular Superboy Prime fanfic could be the one where he teams up with other alternate versions of heroes. It shows how his character, which is often seen as a bit of an outcast among heroes, can find common ground with others. There are also fanfics that focus on his relationship with his home planet before all the chaos. These fanfics give more depth to his backstory and motivation. For example, in some, we see how his upbringing on a Krypton - like planet shaped his view of power and justice.
Well, there's also a fanfic called 'Superboy Prime: A New Beginning'. In this one, Superboy Prime is thrown into an alternate universe where he has to learn to adapt and cooperate with different versions of heroes. The story is full of action and character development. It's a great read for those who want to see Superboy Prime in a new light.
One possible villain could be Bizarro. Bizarro is always causing chaos and with Superboy and Superman together, it would be an interesting fight. Bizarro's reversed logic and powers would make it a tough battle for them.
In a 'superboy meets superman fanfiction', there could be an epic battle at first as they test each other's powers. Maybe Superboy is initially a bit rebellious and wants to prove himself against Superman. Then they could end up teaming up to fight a common enemy like Lex Luthor or some other powerful villain from the Superman universe.
Some fanfictions explore the idea of a power struggle between them. Even though Superman is more experienced, Superboy might have some unique powers or a different way of thinking. This can lead to some interesting conflicts and how they resolve them, while still maintaining their bond as heroes in the DC universe.
In Young Justice fanfiction, Superman and Superboy often have complex relationships. Superboy might struggle with living in Superman's shadow. He could be constantly trying to prove himself as a worthy hero, not just a clone. For example, in some stories, Superboy takes on dangerous missions alone to show he's as capable as Superman.