My 'bombs measure 15.9K bridge and 10.2K neck. Very different sounding, very good complement to each other. I'm not mad keen on the clean bridge sound, but I'd not say it was awful, I'm sure it has it's uses. The neck works clean very well.
'bomb bridge is really made for gain, add just a little and you get great tones, crank it all the way and you still get great tones.
No pup does EVERYTHING, but BK's are very versatile. People do seem to like breaking up a calibrated set I'm not sure why.