Currently ive played Taygen, Ghaldring, Litalia, and Alwan. I am going to finish Astoria today. I personally liked Litalia the most, but Ghaldring's ending wasnt so bad if it wasnt so violent, that also goes for Taygen. He was just a lunatic....a very smart, ruthless lunatic. I didnt like Alwan much because im really not into the shapers or shaping in general, so i like to see them lose. But Ghaldring took it to a whole 'nother level.
BTW, I judge the action of the characters of the game by the peace that ensues from their action. Pretty much the end justifies the means. Not to say that Taygen's plans werent the most morally.....distasteful.