During latest Iwatobi channel show they had a talk, where they had to choose which character is which room.
And the result are:
Makoto - living room (with all family aura)
Haruka - bathroom (no comments)
Rei - kitchen
Nagisa - hall (meeting people which cheerful face and voice)
Rin - bedroom (Nobunaga said that is cuz Rin is erotic)
NOBUNAGA SAID THAT RIN IS EROTIC
And Miyano is like: Really! I am erotic?
Nobunaga: Sexy (Sekushi)