okay, here's my two cents! Or what I can remember of it anyway (might be more like half a penny). I know I won't get them in order if I get them all!
The rocker chick, Amanda, I want to hear a ballad from her, something with feeling.
David Archuletta - awesome and totally redeemed himself from last week. I have liked him from the beginning and think his first name is so ironic.
David Cook - from Bluesprings, MO, did Daytripper! I thought it was well done. He has strong vocals, again ironic first name!
Brook White - I agree with Simon, she should have sung Yesterday. Not as good this week but I hope she's around next week.
Carly, the Irish singer, very good version of Blackbird. I really like her, not real fond of her tattoo but that's just my personal opinion.
Sayesha - good job on Yesterday. Love that song. I agree with Bill that the high notes saved her performance though (or I think that's what you said, is it Bill? Sorry if I read it wrong).
Jason Castro - I think he's the one from Rockwall, right Janette? I didn't really care for his song this week, last week was awesome. (wish he'd cut his hair, again just my opinion).

He has the prettiest eyes though.
The australian guy - name escapes me, I think is a really good singer but the judges didn't like him. I'm not sure exactly what they want from him.
Chekezia - should have lost the harmonica and I didn't care for the up tempo portion mixed with the slower portion. Last week was 1000% better.
The girl who butchured Eight Days last week - Kristie is it? She didn't do a very good job this week either. She just doesn't have a strong voice (or she does and can't bring it out in performance).
Lastly, Ramiel has a very solid and strong voice. I'm not sure I really cared for the song but that could be a let down from last week. How do you get better than some of the performances of last week?
Anyway, this is just my humble opinion. Be interesting to see how America votes.