Wow, awesome thread! Dotting :)
@Entryhazard I think the Lich King leans toward CE, actually. So many times he said stuff about destruction and chaos. Maybe NE, which I would surely peg on Sylvanas.
Garrosh for sure should be CN/CE.
About the power levels... are the Dragon Aspects really less powerful than Arthas? It's been some time I played the game, so my lore-fu isn't the best but do Deathwing and the Lich King really compare like that? I thought the Worldbreaker should be something like CR 26 or 27.