Definitely Rima. She has a cool, disinterested demeanor and in my book, separates her from the rest of the VK girls. She has a cute, girlish look about her and her pigtails look amazing and kawaii!
Well I'm a girl but let me see...
I guess Rima. Plus she's a model so of course XD
And then second will be Yuki. With her long hair. She looks better with it