It's all about musical intergrity, and some hip hop would have a lot more then...lets see..umm.. a lot of the metal being targeted on this thread. Any band or artist should be somewhat original, and not just try and sound like whatever happens to be popular at the given time. Follow your heart and your music should be decent, follow trends...then expect to be evaluated accordingly.
I personally do like some hardcore and deathcore stuff, just a select few I guess.
Firth of exiles, from the villa close to the supertwister in a glass locomotive, eclipse my moonbeams!