I own two guitars. An Ibanez Gio, and a BC Rich Warlock.
I've found that the Gio is much better suited to handling black metal. It naturally has a buzzier, fuzzier sound to it, perhaps because its such a cheap guitar. Its certainly not a bad quality guitar, but it has a great sound to it.
The BC Rich, on the other hand, is better suited for downtuning, so I would use it to play death metal or grindcore.