Charlotte or Laura. Laura made quite the impression on episode 8 so I went with her. Happens to be the only tsundere/ crazy yandere girl I've seen that actually had the guts to flat out do something like that. + Kudos for bravery.
Charlotte is my No.1 girl and her Seiyuu Hanazawa Kana is adding more charm to her character, I mean "Ichika no Ecchi" when you hear her saying that line how can't you come to like her...
Besides her cuteness and charming character, she is indeed strong and that became clear in the latest fight in episode 8, she demonstrated quite good team play so she is a reliable partner.
I have a list actually:
1. Charlotte (too cute to not be number one)
2. Laura (after the last episode she really showed a different side to her)
3. Houki (feel bad for her, she's nice and should be with Ichika)
4. Lin Yin (cute, but definitely supporting character and not much more)
5. Cecilia (she's okay, but someone had to take last)
Tatetashi Sarashiki(Perfect, cheerful girl)>Charlotte(moe)>Laura(direct)>Houki(nice body,could have been Yamato Nadeshiko, but has anger management problems) >Cecilia(model like body)>Lin Yin(nice butt, but has the most yandere attribute of all girls.)
Who is Tatenashi Sarashiki?
Later on in the series, an extra girl, Tatenashi Sarashiki, the Student Council President, joins the fray. She is as wealthy as Cecilia; as sociable as Charlotte; a lot stronger than Laura, since only the strongest person in the school can become the Student Council President. She is also described by Ichika as being just as beautiful than the other girls, or even better than them.She is also the only girl Ichika thinks is out of his league. Tetanashi is powerful enough that she is actually THE OFFICIAL Representative for Russia, not just a candidate, piloting the 3rd Generation Russian IS 'Mysterious Lady'.If you like playful girls, Tetanashi is the girl for you. She becomes Ichika's official trainer and make fun of him all the time. Overall, Ichika describes her as "perfect" in all aspects the other heroines excelled without their usual flaws.
I REALLY love Charlotte and Laura....but another character I really like is Tatenashi...she probably won't appear in the this Season, but if there's a season 2, she will be in the first few episodes. For all Shuffle fans, her personality is very familiar of Asa before she got serious with Rin.