Continued Story. I loved it before the final episode, when the OST first came out. The flute at the introduction was just way too beautiful. Final ep doesn't help much. Second favorite would probably be Sensibility. I was very much disappointed that it never appeared.>_>

And, just thought I should mention it, my favorite non-Hitomi Geass song just HAS to be Madder Sky. The violins, tuba, trumpets....EVERYTHING was so perfect.;_;