I think Andrea is by far the best singer in the competition. Not sure at all what kind of music he will do after the show...maybe Michael Buble kinda stuff?
Fleur is SUCH a great performer and she was amazing with Uptown Funk. I just find her voice to be kinda subpar

Maybe some lessons would help.
I wasn't a huge fan of Ben at first, he's got a really distinct kinda voice, but he has really grown on me. I actually loved his version of Hallelujah.
I'm glad Lauren left at this point. She's likable but her voice is very average, I don't think she's capable of a ton more than she's shown at this point in time. She's so young though and has so much room to improve and grow.