Ethan's great-aunts get a lot of love from the fanbase for being absolutely hilarious (occasional Still Fighting the Civil War moments aside) and displaying the occasional keen Hidden Depths and insights about the hidden magical society around them.
Macon's (literal) seeing-eye dog Boo Radley is more popular than the average Team Pet in a YA book.
Ridley's sisters Ryan (The Cutie) and Reece (the Ice Queen) have little page time or dialogue throughout the books but are quite popular, with fans mourning their deletion from the movie.
Abby Porter, Winnie Reid, and Robert Lester Tate have less than a dozen combined mentions throughout all four books, but still get a bit of interest and sympathy for being the only three students besides Ethan and Link to show even the slightest friendliness to the Duchannces family.
The Film
Accidental Aesop: (Caster) women are entirely slaves to their natures once they reach adulthood, which determines whether they will be "good" or "bad" girls, and have no power to self-determine or change.
Narm: The best part of the film involves Emma Thompson hamming it up with a Southern accent.
"YOU MUST BE CLAIIIIIIIIIIIIIIIIIMED!"
Opinion Myopia: Many either think the film failed because it was a half-assed Twilight ripoff or think it failed because Twilight was so bad that it poisoned the well for other, better supernatural young-adult novels being adapted to film.
