One interesting plot could be a competition between them for a powerful magical artifact. Percy uses his water - based powers, Jason his lightning and flight, and Nico his control over the dead to outwit each other in a race to find it.
Another plot could be a love triangle of sorts. Maybe there's a girl they all have feelings for. Percy tries to win her over with his charm and heroics, Jason with his noble and princely ways, and Nico with his mysterious allure. This would lead to a lot of tension and rivalry between them, not just in the battle for the girl's heart but also in how they interact in general as friends or rivals.
However, Jason has his own set of powerful abilities. His control over lightning gives him a great offensive power, and his ability to fly can give him an advantage in both battle and mobility. In some fanfictions where the setting is more favorable to his powers, he could be considered the most powerful. For example, in a high - altitude battle or in a place where there are a lot of electrical sources he can draw power from.
In some fanfictions, the plot could be that Percy and Luke are in a battle of wits over Annabeth. For example, Luke uses his charm and knowledge of ancient lore to try and win her over, while Percy uses his loyalty and selfless acts. Or perhaps there's a plot where Annabeth is in danger, and Percy and Luke have different ideas on how to save her. Percy might want to rush in and fight, while Luke thinks a more strategic approach is needed, causing conflict between them.
One interesting idea could be a battle of different versions of Jason, like exploring their unique abilities. Maybe in the fanfiction, Jason from the original has his brute strength, while Jason X has some high - tech enhancements, and the story focuses on how they use these differences in a fight.
One idea could be that they all end up in a shared dreamscape created by Freddy. In this space, Jason and Michael have to team up to fight Freddy's mind games and try to escape while also dealing with their own instincts to battle each other. Another could be that a powerful sorcerer summons them all to a modern city and they start wreaking havoc, and a group of brave humans try to use their knowledge of each slasher's weaknesses to stop them.
One popular 'Percy vs Jason' fanfic could be 'Clash of the Demigods'. It often features intense battles between the two characters with unique plot twists.
A common plotline is a quest. They are sent on a dangerous mission, like finding a lost artifact that could save the world of the gods. Along the way, they face many challenges and have to trust each other completely.
One interesting Percy, Jason and Nico fanfiction could be 'The Adventures Beyond Camp Half - Blood'. In it, they embark on a quest together that takes them to unknown realms filled with unique monsters. The author does a great job of portraying their individual personalities and how they interact with each other. Another could be 'The Bonds of Friendship', which delves deep into their relationships and how they support one another through tough times. And there's also 'The Trio's Trial' where they face a series of challenges that test their skills and loyalty to each other.
A great plot twist could be that they are both being manipulated by a third force. They think they are fighting each other for their own reasons but in reality, they are being used. Maybe a god or a powerful demigod is pulling the strings. This would lead to a moment of realization and then they would have to figure out how to work together to stop the real threat. Also, a plot twist where the Mark of Athena has a different meaning for each of them could be really engaging. It could be that Percy thinks it means one thing and Jason thinks it means another and their interpretations lead to a big misunderstanding before they figure it out.
In these fanfics, the theme of growth is quite prevalent. As they compete or face off against each other, they also grow as characters. They learn more about themselves and their capabilities. Additionally, the theme of loyalty to their respective sides or friends is often explored, especially when they are in conflict with each other.
Percy would win. He has a very strong connection to his powers. His control over water is so precise that he can use it in many creative ways during a fight. He can even use water vapor in the air to his advantage. Jason's powers, while strong, are more straightforward compared to Percy's adaptable water powers. Also, Percy has faced more life - threatening situations and has learned to be a better fighter overall in his adventures.