Yep, hoorah for the Mule bridge :lol:
I think what it is is that those of who have it don't shout about it too much - it just is what it is and it kind of does whatever you throw at it. It's just so "right" that we assume everyone must know it!
I have to admit that, with humbuckers, when I say stuff like "I love the so-and-so neck", neck humbuckers are just complementary to the bridge for me. I use them quite a lot, but I set my amp tones for what's coming out of the bridge and middle position.
So, to qualify what I said earlier about loving the Mule and Riff Raff necks - "I just ADORE the bridge pickups" :lol: (My preference at the moment is the Mule, but that can vary with time... eg when I get round to cleaning up and restring the SG with the Riff Raffs in.)