I still like the new version of Chika, but tsuneyo never grew on me, she always stayed bland noodle girl to me.I personally don't have anything against Tsukasa. Some people just don't like her for her bratiness and for the same reason is why people "like" her.
I don't know how far into the game you are, but Chika fucked a lot of people's 100% saves. They were more outraged at Chika for ruining their save than what Nodoka did Yumi. That along with Chika's rapid Yandere descent is why Chika isn't well beloved anymore. I personally still like Chika, it just sucks to see such a beloved character's fall from grace.
Tsuneyo gets more interesting the deeper you get into the game and she's fucking hilarious.
I'm not going to get into Ami because this post would be longer than the bible. And you are spot on with Tsubasa.
Yeah, Futaba takes the crown for most boring character. It used to be Karin, but after something happens to her and she call Sensei out on his bullshit, you actually get invested in her.
I'm actually curious about what exactly makes Futaba so boring.
I know she is boring, she is boring to me, but I just can't pinpoint what exactly makes her so boring.