Their journey has barely started and I think most of how I will think of them will come from how they interact with each other. So far it has mostly been Team Percival and Lancelot as the focus but I do enjoy them all, each in their own way.
Percival, who is clearly the heart of the whole operation. He just has that purity to him, that natural tolerance and wonder only a boy born in isolation like him could have and that allows him to be so emotionally pure in all aspects. Plus he's cute as hell, he's like your little brother, you just wanna give him head pats all the time.
Lancelot, the brains, the measured, the level-headed and collected boy, wise beyond his years, not necessarily by design or by desire but more by - assumed - tragic circumstance. Whatever he exerpienced in that other dimension changed him in more ways than just his power level. I won't lie, I normally find him the least interesting because his emotions are usually so bottled up and I don't enjoy the "cool kid" that never seems to trip up or have flaws. I guess I'll just have to get to know him better.
Tristan, the soul, the courageous, ambitious, the striving, ever impoving child, always self-doubting, always trying to rise up to and exceed his potential so he can step out of the shadow of his father and be someone he can rely on and be proud of. Tristan, so young yet already so aware what it means to be prince of a kingdom and what it will mean to shoulder the lifes and wishes of his citizens. He has a slight air of nobility but at the same time he is also so much the boy that Lancelot seemingly cannot be anymore. He's somewhere between Perci and Lancelot and perhaps generally will be the bridge that keeps this whole team together. Loving Tristan for how cute and dorky he sometimes is and I hope he keeps that schtick of calling his parents Mama and Papa around forever. It's hilarious.
Gawain, the strong arm of the team, the seemingly ever capable, nigh indefatigable, the self-evidently prideful 'warrior princes' that happens to literally suffer from success, can be a huge but strangely likeable dumbass that is utterly unable to read the room when in her powerform... and yet has that air of loneliness and vulnerability to her that only a person can have that does not truly know who she is and what her place in the world is. She's also kinda a mystery at this point and I shamelessly admit to being horribly biased towards her, lol.
