When it comes to the main origin characters, it's hard for me to cast any aside, tbh. Obviously I have a favourite (and I feel annoying just bringing that up, so I won't) but I like the rest. I think Lae'zel has the most complete and satisfying arc, as she is the only one that managed to get a satisfying ending at the docks. She is very charming and compelling in her own way. Classic tsundere if you ask me. Minthara also has a very compelling story. And I know this is controversial but... I like Karlach, and I think her dying is her most complete ending :P I like it for that reason!
In terms of storylines, I honestly think that outside of the companions the storylines aren't that interesting... I'd have to say Ketheric is the most compelling I can think of. Orin had the potential to similarly be compelling, but I think she was either rushed or flanderised or both, and you just get a glimpse of it and kind of have to fill in the gaps and put in that effort yourself. (Don't get me wrong, I love her, she is beautiful and I'm always up for that kind of crazy character- I'm just saying her storyline is extremely flat.)
