I never had them in the same guitar, so it's hard to compare. I think 57s are muddier (but fatter) and the BBs clearer (but harsher). I think I prefer the BBs. I have an SG that came with '57s and a LP that came with BB Pros. I've changed them for Antiquities in the SG and DiMarzio 36th Ann PAFs in the LP and both have been for the better. Other than being both lower output (a fair amount, actually), they're clearer, sweeter and ruder. Neck pickups are usable now, not a muddy, bassy mess like before. That said, I played a LP with a BB3 in the bridge and LOVED it. Might be too hot for what you're looking for, though. But it was beefy and clear at the same time and drove the amp really good.