Favorite and least favorite?

One character I really wanted to know more about was Fanny Elsing. The way she was so affected by Dallas's death, even though no one in town even knew they were involved. And then how she took it so personally, Rhett not being in the army. Then rebuilding her whole life, with Tommy while her brother was just floundering. And then when Tommy was killed, we never had any indication that she was nearly as affected as when Dallas was.

I just wonder what goes on in her head.

Emmie Slattery too. I feel so horrible for her. It's not her fault, the way her parents are. She reminds me a bit of Mayella Ewell. Then she finally gains a footing to climb up and look Scarlett in the face, and she practically got slapped and spit on. I can only imagine how crushing that must have been, how hopeful she must have felt. It was her husband who was being spiteful; I believe Emmie just wanted to feel like she was worth speaking to.

My favorite is also Will Benteen.
Tara would definitely be lost without him.

As for least favorite, it's a toss-up between Ashley Wilkes and Prissy.
Ashley was a worthless loser who would have died were it not for Scarlett and Melanie.
And Prissy may have been meant as "comedy relief", but IMO, she was nothing but an embarrassment.

Part of the magic of GWTW, book and movie, are the wonderful supporting characters.

In the book, my favorite character is Ole' Miss Fontaine. I love her strength, survivor's spirit, and no-nonsense directness. In many ways, she is a role model for Scarlett, who fears but respects her. For her own part, Ole' Miss doesn't seem to like Scarlett personally, but admires her gumption and perhaps sees a bit of her young self in her. Though she plays a pretty small role in the book, I love the dynamic she has with Scarlett, and enjoy all the passages with her.

My least favorite is trickier. I don't like the Calverts' Yankee overseer who coerces Cathleen into marriage, and actually, I'm not a big fan of Tony Fontaine. I like the Fontaine women, but the boys are sort of whiney and incompetent. I always try not to judge characters in a different cultural context by the standards of our own society, but nonetheless, I find the chapter where he murders a black man who allegedly made advances toward Sally, and slashes Mr. Wilkerson off-putting. I know he is only behaving according to the code of his society, but that doesn't make it any more palatable. He also really let's that "N" word fly, and refers to black judges as "black apes out of the jungle." Just because I understand the historical context for it, that doesn't mean I have to like it.

In the movie, Mammy is my favorite character. Hattie McDaniel's big staircase scene is exquisitely acted. Belle Watling get's an honorable mention. I love her scenes with Melanie, and her private talk with Rhett.

Least favorite is harder again. Like many I am perennially frustrated with Ashley, but I have a sort of pitiful contempt for him more than really hating him. Mr. Wilkerson is pretty despicable, though he's perhaps the film's only stereotypical villain figure, so it seems like too obvious a choice. Does the rogue Yankee who tries to rape Scarlett count as a character?

I have to go with two obvious ones: Mammy is my favorite. A moral, proud, and strong woman doing the best she could in a world that denied her equality. Prissy is my least favorite although the overseer is low in my book as well.