Percy Jackson. This guy's name was pretty much the topic of every conversation when Jason had amnesia and was at Camp Half-Blood.
The guy seemed unreal. Too perfect. Part of him kept thinking that the entire camp, including Chiron, were playing a massive, huge prank on him. He wasn't sure if he could believe these supposedly true stories the campers told about Percy Jackson.
This was the guy who Calypso, a freaking goddess, had fallen in love with at first sight. Sure, she liked Leo now, but she had found Leo annoying and a pain in the butt before.
Also the guy who had sailed the sea of monsters, held the sky, tricked Atlas, found a way to navigate the Labyrinth, slayed the Minotaur twice, and achieved a bunch of other impossible feats in a few years of his lifetime.
After meeting the actual guy, Jason felt a whole sense of admiration for him. He seemed extremely powerful, not too confident in himself, sometimes doubtful of his skills and abilities, but he was someone who never let down the team.
Percy seemed like the legendary hero who would go down in history, and could win battles against Hercules, Theseus, and his namesake, Perseus. He was probably the most powerful demigod to ever exist.
With Percy on the Argo II, he had no doubt their mission would succeed.
But spending so much time with Percy, he saw his flaws as well. He was sometimes slow to figure things out, and he often did reckless things to protect his friends.
However, overall, Percy seemed like a nice guy, a good friend, a good brother. He saw the way he took care of the rest of the crew. He was their backbone, their source of confidence, the shoulder to cry on.
However, Percy Jackson, the mighty hero or Olympus, needed a shoulder to cry on as well. Often, when names of past demigods who had died in the war were mention, he would get this broken, lost look in his eyes.
Did he want to be Percy? Well, maybe. He was strong, powerful, loyal, and brave. He could find happiness and friendship even in the depths of Tartarus. He could defeat the impossible, battle the odds so they were in his favour. He fought a god and won when he was twelve, he also battled hand-to-hand combat with the Titan Kronos himself. If he wanted, he could probably defeat most of the Olympians in sparring competition.
On the other hand, Percy went through a lot of suffering. He had to go through Tartarus to close the doors of death, he had been going on quests repeatedly ever since he was twelve, he had suffered so much loss and pain beyond imagination. Deep down, a tiny, dark part of Jason's heart was slightly glad that Jason himself didn't need to go through all that suffering. He didn't want to imagine himself trudging through the terror in the pit of eternal darkness, fighting monsters that landed curses on you whenever you killed one.
Jason was grateful to have Percy as a best friend. Any trace of small jealousy that had once existed before he actually met Percy disappeared completely. He enjoyed sparring with Percy, even if Percy always beat him. Jason promised himself, no matter what, he would always honour Percy and everything he had done for his friends, his camp, and the world.