Matt definitely livened up the competition, but his actual performances were weak. What I found interesting was that last night's performance (after he was booted) was a lot better than Tuesday's -- maybe the edge was off and he could just let loose a bit.
The contestants I like are (in no particular order) Diana (nice pipes, but her perkiness bugs me a bit), La Toya (although I didn't care for the latest performance; the backing vokes seemed to drown her out, not really her fault), George (who is actually my favorite, although I'm afraid that he'll struggle in some genres; soul week was probably the one best suited to his voice), Amy (who has horrible hair, but a really nice voice) and Jasmine (despite having a horrible performance this week).
I'm on the fence about Jennifer Hudson -- her voice isn't the greatest and like Simon said, she's out of her league, but she's entertaining (didn't like the straightened hair and it seems like she's trying to come across as cocky instead of naive and just happy to be there, which bugs me, almost like she's copping Fantasia's attitude).
I don't really like John Stevens, although he is different and I respect that. I just don't think he'll last long.
JPL bugs the bejeezus out of me and I hope he gets booted soon (despite knowing that he'll be around for awhile). I still can't believe he made it past the prelims.
Fantasia bugs me, but she'll be around til near the end. Her voice really really annoys me, way too much vibrato (although this week was a lot better than previously).
My pick for the next booting is Camille -- she improved a lot over the last week, but she still seems uncomfortable and scared. She actually smiled this week, tho, so maybe she'll improve.