There are quite a few characters that are really interesting in the Ice and Fire novel. Jaime Lannister is a character who evolves a great deal. He starts as a rather unlikeable character known as the 'Kingslayer' but as the story progresses, we see different sides of him. His relationship with his sister Cersei is complex and adds depth to his character. Also, Theon Greyjoy is an interesting study. He's caught between his loyalty to his own family, the Greyjoys, and the Starks who raised him. His internal struggle and the way his character changes over time are fascinating. And we can't forget about Varys, the eunuch. His mysterious motives and his ability to manipulate the political scene from the shadows make him one of the most interesting characters in the novel.
I think Jon Snow is one of the most interesting. He's a bastard, yet he has a strong sense of honor. His journey from the Wall to becoming a leader is full of twists and turns. Also, Cersei Lannister is interesting in a different way. She's a complex character, full of ambition and pride, and her actions have a huge impact on the story. Another interesting character is Bran Stark. His discovery of his powers and his role in the bigger picture of the story make him stand out.
Since I don't have detailed knowledge of this 'Fire and Ice Novel', the main characters could be individuals with a connection to the elements of fire and ice. Maybe there is a character who has the power to control fire and is in conflict with another who can manipulate ice. There could also be a character who is trying to bring peace between the two factions associated with fire and ice.
The dragon riders, if there are any, are often very memorable. Their bond with their dragons and the power they wield make them stand out.
Arya Stark is another fan favorite. Her training as a faceless man and her thirst for revenge make for exciting storylines. In fanfiction, she could be involved in all sorts of secret missions, perhaps even infiltrating other kingdoms or uncovering long - hidden secrets about her family or the history of Westeros.
Arya Stark is another character that could be very popular in 'ice fire and blood fanfiction'. Her skills as an assassin and her strong will make her a great subject for new stories. Fans might write about her taking on new enemies or exploring new lands. Tyrion Lannister too, with his sharp wit and complex family relationships, is a character that fanfiction writers might focus on. They could explore his role in different political situations or his relationships with other characters in more detail.
Jon Snow is also quite popular. Imagine if he could ride a dragon? Fanfiction often delves into this idea. His mysterious parentage and his role as a leader make him an interesting character to incorporate into dragon - related storylines. He could be the one to bridge the gap between the ice (the White Walkers) and the fire (the dragons).
Jon Snow is often still very popular in fanfiction. His mysterious parentage and his journey in the original story make him a great character to explore further. Daenerys Targaryen is also popular as she has such a powerful presence and her dragons are always an exciting element to play with in fan - created stories.
One of the most memorable characters could be the young dragon trainer. He has a special bond with his dragon and is constantly defying the odds. His courage in the face of danger makes him stand out.
Aegon the Conqueror is quite interesting. He managed to unite most of Westeros under his rule with his sisters and their dragons, which was a remarkable feat.
Clay is really interesting. He's kind - hearted and has a big appetite. His loyalty to his friends makes him stand out. Tsunami is also fascinating. She's strong - willed and a great fighter.
Daenerys Targaryen is also very popular. Her journey from an exiled princess to a powerful queen with dragons is full of potential for fanfiction. Writers can create different scenarios for her conquests, her relationships with other rulers, and how she deals with the challenges of ruling.