Hahah, well I only say she reminds me of Haley because of her mannerisms. And maybe some of the way she stylizes her vocals. (perhaps a jazz undertone?)
But in terms of being the best of what Xfactor has to offer, I do think there's some chemistry there (cute..not sexual as simon suggests.) But mostly, they are a bit original and they stay on pitch. (or in other words, they aren't dreadful.) So that makes them the best xFactor has to offer.
(although the older group isn't terrible..)
I do have to disagree about them being manufactured. I mean, I don't doubt by the time Simon is done with them that they could be. But they seem pretty genuine. I do think it's couple chemistry as opposed to musical chemistry. Where they look at each other because they are nervous and like each other, rather because they are incredibly in tune musically. But I think that chemistry is genuine.
edit: I understand what you mean though, by once you've seen Haley your standards change. Funny though, for me..I feel like I've just had my standards be different. I don't expect anyone to reach Haley's level. So I've actually expanded into liking different acts (like Michelle Chamuel), instead of looking for someone to be as good as Haley. Because..it's just not going to happen.
