I would choose Amber over Kree, just because her voice has a pure sound and a timbre (is that the right word?) that conveys emotion. Plus she’s a knock out beauty! (But you could tell she was uncomfortable in those short, shorts—which tells me she is also a modest young lady.)
She is exactly what R&B needs. I don't think she can win. I don't think middle America gets performers like her. I would bet a thousand dollars that she'll be voted off before Lazaro.
Lots of folks will say "so what?" and "it's just a reality show." If it happens, I think it'll be cultural tragedy. I've never earned a dime as an adult doing anything other than play, sing, compose, record and arrange music...that's 38 years in the music business. I probably take shows like this a lot more seriously than folks who can care less about the direction and quality of American popular culture.