I'm not entirely sure who Antoine is specifically within 'Pulp Fiction'. There are a lot of characters in that movie, and if Antoine is a relatively minor or unnamed character, it could be difficult to pin down. It could be someone mentioned in passing, or perhaps a name given to a background character in the script that doesn't stand out as much as the likes of Vincent Vega or Jules Winnfield.
In the 'Charlie Daniels Christmas Story', Charlie Daniels is the central figure. He might be a storyteller who uses his own life events during Christmas as the basis for the story. He could be someone who has had a long - standing relationship with Christmas traditions and is now passing on those stories, whether they are about his family's Christmas, his musical experiences during the holiday, or other things related to Christmas in his life.
Not knowing exactly who Antoine is in 'Pulp Fiction' makes it difficult to define his significance. But in the context of Tarantino's work, every character, no matter how minor, usually has a role in creating the unique and complex world of the movie. Antoine could have been used to show the diversity of characters in the criminal environment. He might have been a connection between different groups or events in the story, or perhaps his presence was simply to make the world seem more populated and real. It's also possible that he was part of a backstory for one of the main characters that was only hinted at in the movie.
I don't know who Stone Daniels is in this story as there's not enough information. He or she could be a public figure, a local resident with an interesting story, or someone newsworthy for a particular reason.
Well, Antoine Hunter in Great Big Story could be a lot of things. Great Big Story is known for highlighting the extraordinary in the ordinary. He could be a local hero in his community, someone who has overcome great challenges. Maybe he's a person with a passion for a traditional craft that he's trying to preserve. Or he could be an innovator in a new and emerging field, using his skills and ideas to make a difference. Without further details, we can only speculate about his role in Great Big Story.
Again, without having read a lot of 'antoine and bunnie fanfic', it's hard to say for sure. But common themes in fanfic in general can include friendship, adventure, and sometimes romance. So perhaps these could be themes in their fanfic as well.