I prefer Hara as vocalist. I don't think
that her voice is made for rapping.
Rappers are supposed to have stronger voices
such as Miryo from BEG or Yoobin from WG.
Everything would fit them. But I'd choose purple (besides pearl peach), because
when I hear the words "Kara" or "Sweet Melody" I think of
a purplish tone.
Seeing all that stuff makes me kind of sad but I'm
glad that KARA didn't turn out to be disappointing due to
SeongHee's leaving. In fact, it is way better.
(I'm not implying that I didn't like KARA because of SeongHee)