Sharp-kun: Hikari Horaki, I've always thought, is one of the characters who had potential to be more in the series than she was. In episode #18 there's an event that, had Anno handled it slightly differently (as Sadamoto did in the manga), could have resulted in major character development for Hikari and provided an interesting relationship with Shinji. Unfortunately for those of us who are fans of these minor characters, we don't see enough of them.
Dr. Nick: I disagree with you here (with regards to Sadamoto's handling of the event), but we'll debate about that later on.