Found this quote from HTH Amps on the comparison Crawlers vs. Abraxas:
BRIDGE
Crawler - PAF vibe, but hotter with a midrange focus, more modern sounding
Abraxas - PAF vibe, but hotter, similar tonal balance to a PAF, great all rounder
NECK
Crawler - PAF vibe, but hotter (not much though), much like a Mule, can be a bit blurred in the bass notes
Abraxas - more like a Patent# PAF or T-top, a little less hot, but clearer (more top end) with no blurred bass, can sound just as fat as Mule or Crawler neck by running the tone on around 5.
From that I take that the Abraxas set should have significantly more top end compared to the Crawler.
Cheers Stephan