Both politically literate and fiery alternative voices in hip hop. Yet which do you prefer and why?

I prefer El-P, as he sounds angrier and you can practically feel him biting the microphone as he speaks. Still yet to see either of them live, so can't judge on that, but having received I'll Sleep When You're Dead the other day, I think I actually prefer it to Amethyst Rock Star. Its so immediate, almost like a great hardcore record in that sense...