for me the weakest were:
stephanie, sanjaya, gina
Phil was also very poor (and he scares me anyway) and i was disappointed in Chris Sligh.
And actually, while we're on the subject - did anyone else think Lakisha was way too copycat on her Bassey number?? mannerisms and everything. Plus, I felt Melinda is playing way too safe.
Jordin and Blake stood out for me (but i don't like his crazy golf fashion), with Chris R close behind. Nice to see Haley do well - there's a bit of fighting spirit she needed to show.