Wouldn't Crawlers be an option as well??
I would say so! I replaced pretty much exactly the same set of pups in my LP with Crawlers, and ahve been very pleased with the results. I was actually pretty OK with the Gibson stock pups, in general, but wanted something that just did it better. And I'd say the Crawlers deliver there; if I recall aright, many of their stats aren't so far away from the Gibson stock pups ... but they're BKPs. :) Very good for rock, metal, blues, and the neck gives a great Santana-style tone.
Naturally the Mules are drop-dead gorgeous for that classic PAF thing, though if you want something a bit hotter (as, indeed, the usual Gibson pups are) and with perhaps a touch more mid-range muscle to cut through, then the Crawlers are a great option.