I've kind of settled on Custom Custom for bridge. It's proven the most versatile for me. It's a loud PAF with that mid-bump needed for chime when clean. Split to slug, it's very Fendery, almost quacks on it's own. Split to screw it's like a P-90. Coils in parallel it's like a Telecaster bridge. If you scoop the EQ in full humbucker mode, it handles some Distortion-type duties given it's output (good enough to jam 1-2 metal-ish songs but not a whole metal set), though not nearly as tight because of the Alnico mag.
If tighter is my priority, a Black Winter would be the choice. It fits the same description as the Custom Custom except in full humbucker it's more modern / active sounding; doesn't do chime or PAF-ish stuff quite as well (kinda, but not great - enough to jam 1-2 vintage songs but won't satisfy for a whole vintage rock and roll set per se. Depends on amp.)
For neck humbuckers, Jazz or Seth I found myself using most often for many years, though my current favorite I've been using for 5+ years is a 59/A4 neck. A stock Pearly Gates is a close second - really probably the best off-the-shelf PAF neck. They are very close neighbors. They both make "that" Gibson Les Paul neck sound. (I need to try an A4 in a Pearly and see what happens.)
I start humbuckers at the stock Gibson heights, then will move them slightly up or down to find a better sweet spot if needed. I get each pickup to sound it's best on it's own, then use the volumes to mix them for middle positions. I tend to set the filisters straight across on the neck, and use the 45-degree offset from the patent drawings on the bridge. They do sound different to me, clearer that way - the point is to get the magnetic field to intersect with the string vibration as fully as possible and 'isolate' each string to the degree possible.
