Seymour Duncan SH-5 Duncan Custom BK

This is a great pickup for when you want more power in the bridge position, but not a full-on distortion or metal only pickup. It also still does more classic sounds (Van Halen comes to mind).

The bass is full, but at the same time tight, which makes this pickup very suitable for downtuning. I tuned to dropped B with this pickup and palm mutes sounded really punchy, while they can sound a bit flubby with other pickups (Dimarzio Super Distortion for instance). The high end is crunchy and the mids are somewhat reduced, but definitely not scooped.

There are better pickups if you only play clean, but anything from classic rock crunch to metal works well with this pickup.