Can we talk about how interesting Percy’s dynamics with the Olympians actually is? Like, both on an individual and on a general level?
He and Ares have a rivalry. A genuine rivalry, based on mutual dislike. Frank described them in Son of Neptune as “two old war buddies talking trash” and Phobos described Percy in “Stolen Chariot” as a “sworn enemy” of Ares. That’s actually insane if you think about it. Those are the immortal god of war, and a sixteen-year-old teenager. Ares would have been fine with Percy becoming a god, because he looked forward to just fight with him or beat him up for eternity.
Percy is the only known male demigod Artemis respects, who won the friendship of not one but two of her lieutenants.
He is the demigod, who challenged Dionysus views on heroes as a whole, and that, as a son of Poseidon, half-brother to Theseus, the hero who betrayed and left Dionysus wife. The hero, who ignited Dionysus hatred of half-bloods in the first place. Still, Dionysus placed his trust in Percy to save both Olympus and Pollux in the Last Olympian.
He and Nico are the only two demigods to ever canonically acknowledge Hestia. Percy even sacrificed hope to her, which was probably the biggest sacrifice and the biggest sign of respect she ever received from a demigod.
Aphrodite takes a special interest in his love life.
Hermes and him are on pretty friendly terms. So far, that Percy even refers to him as a “friend” in the Staff of Hermes. He is also the only demigod to ever completely openly criticize him on how he handled Luke’s situation and doesn’t back down from a rather intense argument. At the end of the last Olympian, Hermes gives Percy a list of his children outside of Camp half-blood and asks him to personally escort them to safety.
Despite Hades trying to imprison him and threatening him with death, Percy is, together with Nico, the reason why Hades and his children are accepted at Camp Half-Blood.
While Hera dislikes him, she still acknowledges Percy’s importance for her plans and describes him for one as “constant as a compass needle” when it comes to his friends, and also as someone who inspires loyalty in “Son of Neptune.”
Poseidon, centuries-old god of the ocean, who probably had thousands of children in his life called Percy his favourite son in Battle of the labyrinth. After a conversation about Antaeus, who, for over three thousand years has sacrificed people and monsters in honor of Poseidon. Still, it is Percy, who is his favourite son.
He is the only modern demigod to get offered godhood but chose instead to use their favor to create a better world for all demigods and to request forgiveness for the gods who fought on Kronos’ side, which changes some of the quintessential rules of their world.
Percy is blunt and not afraid to openly challenge them on their views and actions, but because he is probably the most powerful and accomplished hero to ever live, and because he has saved them and the world on numerous occasions, they can’t just ignore him or kill him off, and even have to listen to him on some rare occasions.
None of the other demigods really have that, at least to this scale.
It’s so interesting to me, how Percy’s relationship to the Olympians, both negative and positive, echoes more the relationship they would have to another god, than to a half-blood.