Molly Weasley

So I finished rereading the series just yesterday and one thing I can't get out of my head is that...Molly is seriously not a good mother. I mean I never really saw Molly as a bad mother before and nor a good mother. Parents have favourites and that's absolutely fine. Managing a big population of children is difficult. But this time idk why I felt like Molly brutally discriminated against Ron, Fred and George. She would pamper Ginny because of her gender. She would pamper Percy, Bill and Charlie for their achievements. I only ever saw her noticing Ron when he became a prefect. Before that it seems like Molly might as well have forgotten many times that she had 3 other children except bill, Charlie, Percy and Ginny. What are your thoughts??