Toboe! The episode where he snaps was my absolute fav xD The one where he dies made me cry too D: I think that sad part was the best from some other sad parts, though. (Don't want to spoil anything xD) It was more touching.
I hated the ending of Wolf's Rain though. Not really because of what happens (though thats part of it) but just how they did it -_- I think they could of made it a little better but, eh, oh well :p