I am using the Sorting Hat Chats System, which is more complex than the original traits described in the book. For this Sorting, I am going off the recent Greta Gerwig movie (but also considering their traits in general from other adaptations and the book).
Jo March: Gryffindor
Jo thinks she should have been born a boy, so she could charge off into war and do heroic things. Since she’s confined to live a woman’s life instead, she writes passionate, dramatic stories that contain sinister events (vampires, thieves, and murderers). She can be hot-tempered and impulsive, but it’s always in the service of the greater good, cutting off her hair to fund her mother’s trip to the hospital to tend their father in defiance of standard beauty norms and the behavior of the time. When Beth tells her they must prepare for her death, Jo retorts back that, “God hasn’t met my will yet.” She goes against her family and all their desires for reconciliation with Amy after Amy burns her manuscript, until she almost loses her sister and realizes how much she cares about her. For her, forgiveness is a choice based on her own opinions, not anyone else’s.
Meg March: Ravenclaw
The “true” Meg and her taught ideals are somewhat at odds with each other. She tries hard to live the system of morality, self-sacrifice, and compassion that Marmee taught her, but sometimes fails. When Marmee leaves them to care for their father in a Union Army hospital, Meg decreases the needs of the Hummel family to prioritize their own needs. She struggles to keep the house together, and charity is the last thing on her mind. She desperately wants to be married, and own beautiful things, and be pampered, powdered, and squeezed and admired, but Laurie’s disapproval makes her feel ashamed of having given up the March Family’s simple, honest, Christian way of life for the afternoon. She seems to have adopted and taken to heart the values her mother taught her, and tries in all ways to live up to them, but sometimes fails – such as when she purchases dress fabric to impress her friend and out of a self-desire, then feels ashamed because it has cost her hard-working husband his new coat. Meg doesn’t feel good about herself until she has made the impersonal decision (to sell the fabric and purchase him a coat), rather than the emotional one. She is steadier, calmer, and wiser than most of her sisters, because she tries to moderate her responses, unlike their passionate declarations. And she chooses a “good man” and a stable marriage over a life of excitement or, as Jo wishes, “on the stage.”
Beth March: Hufflepuff
A quiet, gentle soul, Beth sees everyone as equal and although she is loved by Jo the most, she never makes her sisters feel alienated or excluded from her attentions. She is quiet, hardworking, and shy, preferring to stay at home or play her piano rather than venture out into the world. Her sweet, true nature shows when her mother gives them the care of the Hummel family – unlike Jo who is distracted by work and writing, or Meg who is taking care of the Marches first, or Amy who doesn’t think about them at all, Beth sees their needs as equal to their own, continues to visit and tend them even when the baby gets sick, and contracts scarlet fever as a result. Her willingness to care for them just as much as her loved ones even when their resources run thin shows her Puff heart.
Amy March: Slytherin
Amy is self-confident, ambitious, and willing to cut corners to get what she wants — Laurie’s main issue with her for a time is her desire to marry Fred Vaughn for his fortune alone. As a child, Amy seems concerned with herself, Meg as her chosen favorite, and her sisters in general more than other people (she does go along with the decision to help the Hummels, but spends very little time with them or thinking about them, instead choosing to focus on her art). She feels guilt whenever she betrays her sisters — though she accepts going abroad in Jo’s place, she feels sorry that her sister cannot go, because Aunt March has chosen her as a favorite; she also feels sorry for having gone behind her back to marry Laurie, and hopes it does not put a distance between them.
Marmee March: Ravenclaw
Marmee is nothing if not a dedicated idealist. Throughout the story, she tries to shape her ‘little women’ into the women she believes they are meant to be, through teaching them the values she holds dear and the ones she has chosen for herself. She believes if everyone chose to treat each other well, the world would be a kinder, more compassionate place. She has a firm set of beliefs and expectations for their behavior and sets an example, but also can be outspoken, independent, and go against cultural norms – they simply are not part of her system. She has chosen what she likes and discarded the rest. Her decision to help the Hummels is because good people ought to be generous, considerate, and value human life, and it’s their responsibility to care for those less well off than they are. She tells Jo she could see how her temper was doing harm to herself and others, so she had to learn to ‘rein it in.’ She saw an undesirable aspect of herself and brought it into submission to adhere to her belief system.
Theodore Lawrence: Slytherin
Laurie has a ‘possessive’ love. In the earlier adaptation, after Jo rejects his proposal, he tells her he would feel jealous of and hate anyone who tried to come between him and the March sisters. “I hate Mr. Brooke for loving Meg,” he says, “and if Beth had a lover, I would despise him too.” Once he adopts them as his family, Laurie does everything for them—includes them, goes out of his way to help them, installs a mail box for their secret letters, and delights in being with them. He feels so angry, hurt, and rejected by Jo that he throws his life away for a time on aimless pursuits, but Amy rattles him so much with her open disapproval of his lifestyle, he goes back to work and becomes responsible for her. After he finds out about Beth’s death, he rushes to Amy’s side to comfort her. He only feels happy when he is allowed to become a legitimate, married part of “the March family.”
Though not in this film much, Professor Bhaer of earlier adaptations and the books is a Ravenclaw. Much like Marmee, he has certain ideals he tries to live up to and imposes on others, and he shapes Jo in how he holds to them – his belief she should write stories that reflect her soul and not just popular themes helps her transform into a better writer. He Models Hufflepuff, because he has such a genuine kindness to everyone in the house, indiscriminately—but his first love is philosophy and ideals.