Seeing as it was my review of both that put you in two minds in the first place, I better contribute :)
The Holy Diver does do METAL - in fact it does it very well :twisted:
FWIW, after spending a lot of time comparing the MM, NB & HD I'm going to put an HD in my Jackson.
That's not to say I don't like the NB or MM - they're all fine pickups, but I really like the massive thick tone, the harmonics & the "chunk" of the HD.