Nailbomb has extended highs and bass, but you can find tighter bass. Strong vocal mids (very nice, no particular mid spike), screaming highs though.
Cold Sweat are dryer than the Nailbomb (less fatness), but have tighter bass.
HD (new version) has strong mids, tight bass( but less of them than NB), and the highs can scream easily. A bit less gain and power than the NB, maybe a bit less highs (but I would need to compare them side by side to confirm, I could be wrong).
For what you need, I would go with the Holy Diver.
Jus my 2 cents.