Katie, who will definitely be gone this week, as whenever there has been an irritating 'character' who just can't sing well , they have gone week-6.
Matt, who will be staying . I can't stand his tone, so would want to send him home,but in fairness,in spite of this, I can objectively see that he is a better singer and performer than some of the others.
Mary , who is as good as Matt vocally(and as inconsistent/bad with the 'wrong' material) ,but who's style/genre doesn't appeal to as large a segment of the show's VOTING audience,will likely be going instead.