Mmmmmmm......
Metal is a very broad term so there are lots of possibilities that would fit this description. My favourites are obviously the Holydiver and Miracle Man but that probably says more about the era in which I grew up than anything else. The A-Bomb was a great Metal pickup but was just a bit too extreme for me. The same is probably true of things like the Aftermath. Thinking about it, most of the BKP range will do Metal. The only 'Hot' pickup that I probably wouldn't use for Metal would be the Crawler but I daresay even that could pull it off in the right guitar and with the right amp so I suppose the answer to your post is 'Anything from the contemporary range'. Having said that, anything in the Vintage Hot range can do Metal too, even the Abraxas if you listen to some of the clips by HTH Amps. There's even a lot of the Vintage range that could pull it off.
My experience of other pickups is more limited. I've tried Seymour Duncan Hotrails and JB, both of which left me unimpressed, though they both worked a lot better in a Strat. I've also tried Invaders and overall I really liked them. Sure, they could get a bit muddy but I didn't find them as bad as many people make out and I loved the thick, aggressive tone. Generally speaking I preferred my experience with DiMarzio, where my Metal pickup of choice would certainly be the Super Distortion. That's one of the few pickups I would genuinely consider buying that isn't BKP, though that's partly driven by the fact that there isn't really a BKP alternative. I also liked the PAF Pro, though that's more Rock than Metal. I don't really like EMG at all. They do what they do well and I can see the appeal but to me, they just have no soul. The new EMG 66 does sound really good though for a neck pickup so I suppose I could be tempted by a 57/66 set even though there are more obvious EMG pickups for Metal.