Hey. I just put some Abraxas in my S2 24 PRS, and I own a Holy Diver. The holy diver is darker, has more muscles. The Abraxas is round when your attack is soft, brighter when you dig in (yeah Alnico IV).
If you have dark and fat for rock, I guess go with the Crawler. If you want that burst of elegance, Abraxas. But your music tastes tell me you'd be better off with something a lot tamer, like the mules.
I have slightly harder tastes in music, and the Abraxas in my Orange Rocker terror sound exactly like classic Opeth albums, both riffs and solos. Tight PAF vibe in the lows without getting too bright to the point of become gnarly. Can support a good load of dirt, great cleans, and these interestingly thick mids without sounding honky. I was afraid of that c--ked Wah effect (like the SH4 seymour duncan) can have, and it stops before that. It's just my best combo Guitar + Pickups I've ever owned. Better than my Rebel Yell and VHII in my other PRS.