This is pressure cooker under a microcope! To do this on TV in front of America every week is tough. I think Katharine really thought she was going home.
I know the general feeling here is that she should be next. I think Elliott is improving each week. He demonstrates that he has taken all of their "lessons" to heart and now uses the techniques he's learned in his songs.
Why can't Chris be next? He said himself that he sang his 2nd song from Tuesday night 5 times that day and his voice was going. All of his songs are going to do that to his voice! He won't be able to do a concert night after night like you do when you're on tour. He needs to learn HOW to sing first. Maybe this is why he isn't a professional already?