The Holy Diver neck pickup is probably my favorite pickup (EVER). It totally changed the way I play and gave me an appreciation for neck pickups that I did not have in my youth. I have a Gibson Flying V with a CPig in the Bridge and Holy Diver neck. Obviously the bridge is for crushing shite plus most of the riffing Big, scary, lots of power chords. I use the HD neck for cleans and for big cushy harmonic solos. I roll the volume back (to around 1.5 or 2) and I can get a really nice articulate and harmonic clean even on the lead channel of my 5150, which always surprises me (plus whoever isnt ready for the switch when were playing). I describe it to people as a medieval clean, just switch to the neck and play the best representation of Greensleeves ever heard. Because its coming out of the 5150 it has a lot of headroom and the overtones just fill the place up. A really nice example of a great Alnico pickup, frickin unbelievably beautiful.
I got to play my neighbor's Caparison with a Nailbomb in the bridge and a Cold Sweat in the neck and the CS definitely has more of an aggressive lead sound to it than the HD. On full blast I'd say the HD is a little bassy for leads. I also got to play his AxeFx and I ended up using the HD to record on it because the WP got alittle messy and didnt allow for the same capitalization of the guitar's harmonics.