From the description, Aftermath would certainly do the fast bass tracking and the midrange growl. I do not really see it doing Pink Floyd and Zeppelin too authentically ... I guess it's almost as hot as the PK.
Actually I had the Holydiver and the Abraxas bridge models in the same guitar. Both sounded very good and not too different. The HD had a bit more output whereas the Abraxas was a bit more open. Both had that strong warm midrange, and both were quite tight in the bass.
For the bands you quoted I would choose the HD over the Abraxas.
Cheers Stephan