First pickups that I can think of:
- Aftermath
- C-Bomb
- Cold Sweat
Personally, I have experience with both the Aftermath and the Cold Sweat, both great pickups. The cold sweat works great in dark sounding guitars, and especially as a calibrated set it can give you lots of versality too. I find it very tight, aggressive but not over the top, it actually lets your guitar breath. GREAT lead tone too, very rich harmonics.
On the other hand, the Aftermath is very very tight and dry, but still very musical - I can't say enough good things about it. If tightness and supreme clarity are what you're after, you should at least consider it as a possible choice.
Anyway, there is plenty of much more experienced people around here, this is just my personal first hand experience. ;)