I clicked all of the except for Kelly's I surrender and Kat's SOTR.
I surrender was good, but it wasn't perfect, and I didn't care for her voice for a few seconds in the song. ~And I can understand that her voice was under stress during that time.
As for SOTR, I think its been kind of overrated, imo. I don't know if I'm getting tired of hearing this song over and over or whatever. But I thought it was at least a decent rendition.
A few others:
S1: Tamyra Gray - House is not a home / Nikki McKibben - Black Velvet / KC - Stuff Like that there
S2: Ruben Studdard - had a few of them such as Superstar / Trenyce - Power of Love? I think that's what it was called / Kimberly Locke - New York State of Mind
S3: Fantasia - Give them something to talk about and a few others / Latoya London - All By myself, a couple others I can't name, and her elimenation performance
S4: Didn't watch but I did see some You Tubes. Carrie Underwood and Bo Bice (More so from him than from her) had few good performances each.
S5 - I can name more here since this season was most recent: Chris Daughtry - I walk the line, dead or alive, Renegade, and a few others. :P / Katherine M - Think, Bringing out the elvis / Melissa - What about Love (Underrated) / Kellie - Only One / Elliot - his collab with Mary J Blige "One"
.. I also like Daughtry's - I Walk The Line