Like I've said before, I don't give a shit about classifying music, as it always leads to stuff like this, people always debate it, even if they're dead wrong. That's why I just call every heavy band metal. Metal: either hard/harsh vocals or clean. Makes my life a lot simpler. Just a thought. (Anyone agree?)
P.S. Homer, Yer right I spose. Amon Amarth is closer to 'Viking Metal' I suppose, in my opinion anyways. Doesn't fucking matter, I still love them. A Thousand Years of Opression = MY FAV AA song, not saying it's their best, just my fav. And Wintersun, that's a toughie. Ensiferum (Jari's former band) was more like folk-y metal with a viking/scandanavian twist. It's great music. And Wintersun basically follows suite, just slightly better. Not sure the exact classification, but who cares, right?!