Well, neck pickups and bridge pickups are good for... whatever your ear likes them for. There's no rule about what to use each position for, though the sounds you listed are, I suppose, fairly typical.
As for wiring, I really like a
neck humbucker wired in parallel for a clean tone. I personally find this far preferable to coil-tapping. I don't find that a
bridge humbucker in parallel is quite as useful, though I have been known to experiment with taking a coil from each pickup. In parallel, this seems to result in a tone that's a bit brighter than a neck humbucker in parallel, though still with enough output reduction to result in a nice clean sound.
I also have one HH guitar with a P-Model Megaswitch from Stew-Mac. This gives you:
1 - Bridge humbucker
2 - Inner coils in parallel
3 - Outer coils in series
4 - Outer coils in parallel
5 - Neck humbucker
Position 3 here is interesting. To my ear, the sound is much more defined that the typical "both humbuckers on" setting, with a pretty unique tone, at least with the two pickup sets that I've tried it with. Positions 2 and 4, as you might expect, sound pretty similar. I wish they could have made 4 the neck in parallel, but they were trying to mimick the options on a PRS rotary switch, apparently.
