When it comes to appearance, it's Megumi and Maya, but when it comes to overall personality I loves me some Yuri.
She is someone I can see myself holding in a gentle and loving embrace, and feeling genuinely good that I am with that person. Yeah, I'm a bit of a romantic, so back off.
**** it, I'm going with Yuri, especially after seeing that second pic posted of her in here.
EDIT: Poor Mio hasn't gotten a single vote yet.