Her story is mostly done but I'm hoping that the dating system fills out the gaps in her personality. Seeing the "conniving bitch" angle give way to something closer to a classic tsundere would bring her up quite a few notches in my eyes. Her diary spends so much time hinting at the notion that it'd be a crime not to see that possibility fulfilled.
Roxxy is probably still best girl for me, though Grace makes a compelling dark horse. Gimme all of that "struggling small business owner just needs love" smoke.
DC's got a talent for making lovable characters that you just want to see more of, even though the horrifying development hell we're currently in makes a lot of those desires look like pipe dreams.