Alright I'm taking the initiative here because we got some metal fan new members and I refuse to watch this thread die!
Similar vocalists, similar wicked style, while still maintaining a definite individuality. One is more drone, one is a bit faster, but they're held in equally high esteem. I present....
Khanate- Things Viral
Lord Mantis- Pervertor
Have at it, you sick bastards.
Listen to each, review each, maybe rate each, then choose a winner, for any newbies reading this.