It's all just too confusing to me. The complexities of the combination of guitar and pickup just make it so I can never really tell what's due to what.
Heck, I can get as close to a PAF / Les Paul sound from NF pickups in my McCarty 25th as I can from anything. Go figure. I've never swapped pickups out of anything except for a R7 (swapped the burstbuckers with Bare Knuckle Abraxys's) Couldn't really tell the difference. A little hotter, which is nice on occasion, but I always unconsciously tweak the guitar controls for whatever sound I'm going for anyway. Taken as a whole though, the combination of guitar, pickup and wiring certainly make a big difference, but I can't sort out the contributing components.