I'm a Dimarzio Super Distortion fan. My guitars have Duncans, Bartolinis, GFS, EMG, and Dimarzio pickups on them. The Super Distortion was my first aftermarket pickup and I pretty much compare all others to it. The EMG's are nice for distortion, but they don't have as much low end and are compressed and to me lack dynamics. My Duncan JB is a good pickup, but a little to brittle and "crunchy" for me. The Bartolini PBF 77 is their "distortion" pickup and has a good amount of grind to it but still has a sweet, fat tone also.