Mmm... first I should explain why I chose to do Hinako last before the true route.  Hinako is the secondary protagonist of the VN, the one who introduces you to the characters as well as to the nature of the rehabilitation plan in the story.  As a result, Hinako's character development is jump-started, to the point where she is incomparably developed compared to Ruka and Momo.  Hinako is probably the strongest person in the VN, at heart.  Of course, she has her - rather obvious - weak point