ETOS - Yeah, I don't like the vocals either
But the song is insanely catchy. Plus they have one amazing album (Children Of The Dark Waters) so I can say I'm a fan
MDB - I like MDB, but not stuff like this... Gimme slow brooding stuff and doom, not death metal.
ReVamp - Awesome song. It ended up in this round because of the growls near the end of the song.
Actually I don't think I've mentioned how I grouped the songs:
I divided all songs into 6 groups: heavy metal, power metal, thrash metal, rock, extreme (everything with growls) and unassigned songs. Thrash metal was the smallest group (13 songs iirc), so I had to move those songs into other groups. That left me with 4 groups + unassigned, all uneven in number of songs. So I drew 6 rounds for each of the 4 groups. For example: after drawing 6 rounds with heavy metal songs, the remaining heavy metal songs were moved to the unassigned group. So there's 6 rounds each for heavy metal, power metal, rock and extreme (=24), and 16 mixed rounds.
Septicflesh - One of my favorites. Great riffs/melodies. They also used a real orchestra on this song/album
Soilwork - Great chorus, but the song is weaker than their other song in this game...
Anyway, I'm voting for ETOS and Septicflesh.