I generally think furious music is ****ty. When people are screaming, swearing, and just in general raging on the microphone my ears feel so offended.
I just don't think anger and music go together.
I do think it's possible to sing anger in more lighthearted ways, such as what you hear in a lot of Ska or other rock/alternative genres (I guess mostly nu-metal), or even in comedic music. I guess if it's a serious, I'm-going-to-kill myself anger, I just don't relate to it. So I'd say that is the worst kind of music.