*edit* Please excuse my mispelling. It is Children of Bodom and not Shildren of Bodom. Thank you.
The list is of the top Metal bands, they are the hardest, deadliest bands around.
They chew up your Metallica and Black Sabbath and spit them out in a gnwed up heap of filth.
So don't say that you know a band harder, because I suggest you actually listen to these bands first.