I am a big fan of Chris Rocks. Although he is a democrat and a republican basher, you can sense a strong conservative current running through his comedy.
I love his voice too, when I think or retell the joke, I always use his voice: (The joke goes something like this)
"Martin Luther King was all about non-violence, well, if there's a Martin Luther King street in your neighborhood, I guarantee you, there's some violence goin on over there.."