Andy
Everything I Do... Not bad but not great. Just - okay. I think Andy is such a nice guy, but wasn't sure about the blatant play for votes with bringing his kids on at the end.
Lately Much better. But (dare I say it) I find this song the teensiest bit boring. Still, he did a good job of it.
Brenda
R.E.S.P.E.C.T. Brilliant performance! One of Brenda's best.
Without You Didn't listen to it, because I really cannot bear that song.
Journey South
You're In My Heart I really liked it, and I never used to like that song before. Excellent - they totally deserved their place in the final.
Let It Be Well, taking on The Beatles was always going to be a risk, but I really think they pulled it off. Performance of the night for me. Only tiny niggle is that I wish Carl would stop looking so terrified!
Shayne
If Tomorrow Never Comes 
Pffft. Probably the most boring song of the whole competition. Not blaming Shayne at all; he performed it well, especially considering he only had a day to learn it - but it is sooooo boring.
Unchained Melody I was a bit confused when it started - it seemed to start halfway through the song, which seemed odd. Apart from that - as much as it pains me to say it - it was a good performance.