I say Kurisuu ~ Crys, Yellow, and Sapphire.
Yellow ish just plain kawaii, in every wittle aspect. Sapphire ish just adorable, I can't see how anyone can see her as not cute. And Crys, she ish just <333
I know that Yellow seems a little perfect, but her handicap balances things out.
~onii-tan, don't worry. Everyone else shtill <3's Yellow. :33