New pickups probably won't make a difference through that crap amp.
Anyway, since you seem fairly new, I doubt your ears can hear much difference in pickups either. Also, the bands you quoted have tremendously different guitar tones.
Go play more guitars through more and better amps, get an idea of what kinda tone you want (High gain? Big bass? Tight? Open? Lots of clarity? etc etc) then search for a pickup.
There's no "best sounding" pickup, only what you want to get from it. Unless you are looking for build quality then I've already mentioned the best in the business.