Marcus and Chris were just ok to me. I liked Chris' second song better.
Melanie--was bored on the first song but thought she did a lovely job on the second.
Josh--loved the first song. I actually agreed with LA, though, about the second. "Hallelujah" is one of my favorite songs; I have the original Jeff Buckley version downloaded. However, Josh's performance sounded ok to me, not great. In terms of cover versions, I'll always prefer Jason Castro from American Idol.