Gangster Amoeba said:
I think it depends on the battle.
Pretty much this. I wouldn't want pulse pounding metal during my fight with The Boss at the end of Metal Gear Solid 3. It just wouldn't fit. Conversely, said metal would work very well for other final bosses like...Mundus in DMC1.
Both have their place, as do other varieties of music like the aforementioned Trance/Funk/Electric from Final Fantasy 8.
I don't expect hardcore metal when I play Eternal Sonata, nor do I expect classical music when I'm driving my two swords into the face of a minotaur as Kratos.