Okay, am torn between Houses except to rule out Hufflepuff since I don't want to stack on that. As for class, Potions and Charms both have appeal, mainly because I noticed that only Ayako likes Potions (but also likes Charms).
However, Amelia (
@TabithaVaush) has them on her least favorite. Now, it is tempting to try and win Amelia's fondness for learning Potions by introducing her to the kinds that might help her make friends, that is just one thought. The whole helping a struggling student angle, though...I don't see her as that type, could be wrong. Please let me know if I misread. In addition, I think going Gryffindor or Slytherin affect that tone as well given the historical animosity between the houses. Les and Charlotte are both "meh" on it. So for her, there's potential for a wide range or antagonism or friendliness (or both!), and would love to hear if you have a preference.
With Charms, that seems a subject characters (and hopefully by extension, players) would enjoy more. And both Charms and Potions have potential for mischief and interesting exams.
With House, while it is a fact that Ravenclaw currently has "double" the appeal, I am genuinely torn, as I like a variety of relationship dynamics.
For blood, I am thinking pure blood, though not a "dynasty" family. That should at least help with some thoughts.
@SMG9000 Would love to hear what ideas you had.
Actually, for any of you, feel free to PM me if you are more comfortable discussing dynamics privately.