Okay, in response to the two questions:
Stefan - Might as well put DHG in black metal, since that's the genre they're most often associated with (even though their new one sounds more like death metal).
AlexandeR - Put Turisas and Moonsorrow in Avant-Garde/Alt-Metal/Metalcore. I realize they don't fit well there, but, as it was last year, that category will be used as a catch-all for obscure genres (Viking, Folk, Sludge, etc). The reason we don't have a Viking Metal thread is the same reason we don't have a Sludge Metal thread. There would only be a few people that would vote in them and others would pop in and vote for one album because that is all they have heard. We did something like that a couple years ago and it was a mess. The current system, while not perfect, is probably the best way of doing things.