There's not much to say about Seirei no Moribito really: it does not evoke any strong feelings, nor prompts any speculation. Undoubtedly a very strong production, pleasant to watch and all that, but something is not quite there. No idea what.
Balsa is sympathetic. Chagnum surprises with stoicism. I expected a different stereotype, the one of a prince thrown into commons: someone more whiny and snobbish, who may get reformed by hardships. But Moribito is a different kind of story.
Almost forgot: Aroduc once evangelized fights in J2 to me. Moribito definitely has the same feel, with the movements truly animated. Maybe even better than J2. Contrast this with FS/N, which looks cool but actually fakes most of it. I don't care all that much, but a point worth noting for Aroduc's disciples out there.