That was an absolutely INCREDIBLE ending. Bittersweet, but very fitting for the series and very memorable.
...The tears won't stop... ;__;
EDIT: I need to rewatch this with something that has better video quality than Nicovideo because the final battle was so fast-paced and INSANE that it kept lagging and everything kept getting pixelated.
EDIT 2: Oh god I rewatched that AMV I posted earlier and I'm crying again. This ending is so beautiful and so perfect. ;____;