Good pic, although I don't know why, but I think The Chosen Undead doesn't get enough credit, I mean, yeah he dies, but death is near meaningless to him, since he can just get back up again, and canonically, he DOES triumph over everyone, even Artorias, Manus, and Gwyn, weakened as the last one is.
While it is undeniably praiseworthy that he killed Manus and the Lord of Sunlight's husk, Artorias was pretty disadvantaged when he was put down. I mean, he *was* wielding his sword in his off hand after all. Don't get me started on his shield (or lack thereof)
I think the game outright says Manus defeated Artorias. Dusk of Oolacile IIRC says that Artorias lost because he wasn't human like the Chosen Undead because something something Humans are Special or something, I dunno, the game is vague as hell bout it.