First question I have: what guitar will you be using it in? Woods are pretty much half the deal to know which Pickup would counter/balance the frequencies your setup provides.
The Aftermath Neck provides the early Petrucci tones, at least if you give Misha Mansoors opinion any credit, however I heard the same thing from other people beforehand.
Blackhawks are said to be ideal for varying styles from metal to fusion, unfortunately I don't have any experience with them.
I must say I'm pretty satisfied with my Holydiver Bridge, but it's an Alnico 5 Magnet and more organic sounding, but perfect for Thrash and the 80s Metal tone. Splits pretty well too for nice clean sounds.
If you're going for the Tool sound, you could get the Nailbomb Pickup, not sure if Alnico or Ceramic though. It's said to be very versatile, it can be quite aggressive put with the volume rolled tone it provides good clean tones.
Hope I could help you a bit, cheers