What are some good humbucking pickups for grunge/hard rock/metal?

I don't like the stock pickups in my guitar (squier jagmaster), and was wondering what are good replacement pickups? I listen to grungy stuff like Nirvana, hard rock like Guns & Roses, metal like Ozzy Osbourne (really like Zakk Wylde type of sound), and alternative like The Smashing Pumpkins. Any suggestion as to a good humbucker for me?