I totally get the sentiment going around that people don’t want Percy to be a god’s champion just because everybody’s doing it, particularly because he’s got such a rough relationship with gods.
But I think that’s because he sought out the Raven Queen first, and the Raven Queen and Percy don’t understand each other. The Raven Queen is fatalistic. In her eyes, humans begin their lives imperfect, march toward their fates, and perhaps they achieve greatness, but they all end the same way: they go to meet her. Percy just doesn’t think in those dimensions. He altered the course of humanity with his invention, and blaming that on fate would be to shirk responsibility. He has seen people defy and defile death time and again. When he pleads with the Raven Queen for a way to fix what he’s done to the world, he is thinking of redemption but also that he lives as long as Whitestone lives, and that the impact of his weakness will matter, will change lives and end them, long after he is gone. The Raven Queen comforts him by saying humanity can achieve great things, but that is no comfort to Percy, whose greatest achievement is arguably the very weapon that killed him.
If there is a god who would understand him it would be Ioun. She’s a goddess of knowledge, an inventor, and like Percy she was betrayed and wounded in the course of invention. Ioun is blinded; Percy’s soul is in tatters thanks to Orthax. She lives in a place of uncomfortable paradox, where all knowledge should be shared for the sake of progress, and secrets are blasphemous, even if that knowledge can hurt or break or kill - but even then, even she has secrets she can’t afford to share. We haven’t seen much of Ioun, but I think she would think like Percy. Not along the threads of fate, like the Raven Queen and her champion, but in an impersonal chemical chain of combination and creation, knowing well the unforeseen impacts of discovery. She despises the aspiring god who took Percy’s family. Her domain is profoundly controversial and unsure. Percy asked his questions of the Raven Queen, and she answered the wrong questions. Ioun has probably asked Percy’s questions a hundred times about herself.
And of course there’s something delightful about the fact that Percy could earn the favour of the goddess that Pelor is protecting.
It’s likely that any number of entities will be fighting over my soul when I die, he says. I know, says the Champion of Pelor, I’ll be one of them.