Why exactly you guys need to compare Psyche and Medea and make it as if there is some competition between them?
They both excellent characters that were careful constructed by the author and will grown up a lot in the upcoming chapters. There isn't one character that is better than the other in this story, even Yalos is beautiful made - a villain you can hate and still wonder about his motivations.
So I don't get it why would guys want to compare both female leads when they both different characters that have their own motivations and past and that most likely will become allies later.
Really, it's like you guys don't even know how to react when there is more than one female lead in a story. So, just a heads up, you can like them both. It's okay to do it so! Not every female character needs to be exactly the same to be liked.