both should sound amazing
in fact, any BK humbucker sounds amazing in les pauls and PRS's
just figure out if you prefer and airy and bright tone Bonamassa-like tone or a Doug Aldrich heavier middy tone expect a
Peavey amps are quite middy and dense sounding, so maybe the Abraxas is in fact a better match, but that really depends on what you're after
the Diver sounds amazing through the 5150 and the Peavey Rockmaster preamp I had (which is pretty much a higher gain PV Classic with an active EQ)