Lately, the Les Paul guys are raving about ThroBak pickups. This has continued for some time, which is rare among that set in and of itself. Supposedly the Throbaks are wound on old Leesona winding machines similar to those Gibson used (contrary to popular belief, PAFs were machine-wound, not hand-wound.) Another favorite are Sheptone Blue Sky pickups. Neither Throbaks nor Sheptones are cheap, FWIW. Zhangbuckers are a less costly alternative.