From what I've listened to of that album (which is the majority of it), Forever the Sickest Kids (Crazy Train) and blessthefall (Dream On) did the two best covers on it... and they were songs I was afraid to listen to because I thought it would make me hate bands I actually like lol... btf didn't touch Aerosmith's greatness with Dream On but still produced a track worthy of listening to, while FTSK did a great job of making Crazy Train their own instead of trying to emulate Ozzy or just playing the song in a slightly different way.