It's really hard to say for sure. A lot would depend on the circumstances of the fight. If Cardan could use his surroundings to his advantage, or if Jude could surprise him with a new fighting technique, the outcome could be very different. But overall, considering Jude's experience in combat, she has a better chance.
Thalia might be more likely to win. She has years of experience being on her own and fighting monsters before she joined the group. She is also a very tough and determined fighter. Her ability to call upon lightning is a very destructive power. Percy, while powerful, can sometimes be a bit impulsive in his fighting, which Thalia could use to her advantage to outmaneuver him and land a decisive blow.
Draco. He's younger and more agile. He might have learned some new spells at Hogwarts that Lucius isn't familiar with, giving him an edge in a physical fight.
Alice would be the likely winner. She is fast, agile, and has had time to hone her fighting skills over the years. Bella, even if she has some natural strength as a vampire, is still relatively new to the vampire world and would lack the experience and finesse that Alice has. So in a straight - up physical fight, Alice would come out on top.
Lavender could potentially win. She might seem like a bit of a girly - girl, but she could have some hidden fighting skills. Also, if she catches Hermione off - guard, she could use her speed or a quick spell to overpower Hermione. However, Hermione is usually very vigilant, so this would be a tough scenario for Lavender.
Bella might be more likely to win. She has more experience as a vampire and has been through many tough situations. Her combat skills and knowledge of the vampire world could give her an edge over Renesmee.
It's really hard to say. Percy has his incredible powers over water. He can control water in various ways, from creating powerful waves to using it for defense. However, Reyna is an extremely skilled warrior. She has great combat skills and leadership abilities. If the fight takes place in an open area with a water source nearby, Percy might have an advantage. But if it's in a more enclosed space like a Roman arena, Reyna could use her combat skills and knowledge of the terrain to her benefit.
Itachi. He was a highly skilled and intelligent shinobi. His Sharingan abilities were extremely powerful, and he had a lot of combat experience. He also had a strategic mind, which would give him an edge in a fight over Naruto.
In this kind of fanfiction, Naruto being 'godlike' gives him a huge advantage. He might have powers far beyond his normal capabilities. So, Naruto would likely win. He could use his super - enhanced Sage Mode, or maybe some new jutsu that he has acquired in this 'godlike' state to overpower Madara.
One possible reason could be power struggle. Jude has always been a fighter for power in the faerie world and Cardan is a prince. Their different standings and ambitions might lead to a fight. For example, Jude might see Cardan's actions as a threat to her own power or influence among the faeries.
However, if it's a battle of wits and strategy, Tim could be the victor. He's known for his intelligence and ability to plan ahead. He can analyze situations quickly and come up with elaborate plans. Also, he might be able to outmaneuver Jason by using his environment and setting traps. In a fanfiction, the writer could also give Tim some new gadgets or skills that would tip the balance in his favor.