Gaming Villains Showdown Round 1: The Helghast vs The Covenant

[haxxiy]

The Helghast look more badass, but I haven't played a lot of KZ2 so I can't say they are a very important feature to the game or so, if you get what I'm saying.
Since I've played Halo:CE, I can say that these small Covenants that run away from you emit a nice, very funny noise when they die. So I'll go with the Covenants.