I think you've mentioned before at 1up that Shining was a really crazy band, but oh boy, was I surprised by that cover. Really impressive how they turned 21st Century Schizoid Man, a song which isn't by any means light, into an even darker and crazier song. Like woah! O.O
Aside from that, good list. Wasn't very concentrated, so I didn't apreciate more the covers of Chevelle and Breaking Benjamin, but I did liked the covers of Tori Amos, the one of 99 Problems and the Children of Bodom cover was a lot of fun. Like if suddenly a bunch of rednecks discovered Death Metal lol.
Another cover that I really like and I never get tired of listening it's Reel Big Fish redition of Take on Me. If you haven't listen to it, do it now!