Personally I think metal is tedious and bitter. I know it requires some skill to play like that, but can you honestly tell me these bands are really coming up with beautiful novelties of chord progressions. Correct me if I'm wrong but aren't most metal songs written using power chords which technically aren't chords. If so, power chords don't even distinguish between major and minor because the 3rd is left out. So slap a solo using the tapping technique we've seen a million times onto those stale chords and you got yourself a hit!

Just my take, up for criticism :P