It depends on personal preferences. For some, it could be Superman for his superpowers and his role as a symbol of hope. His longevity and influence in pop culture are significant.
One of the greatest is 'Pride and Prejudice' by Jane Austen. It's a classic that explores themes of love, class, and society in a charming and witty way. Another great one is 'The Lord of the Rings' by J.R.R. Tolkien. It creates an entire fantastical world filled with magic, adventure, and complex characters. And '1984' by George Orwell is also among the greatest. It's a dystopian novel that warns about the dangers of totalitarianism.
Harry Potter is also among the greatest. He grows from an orphan boy living under the stairs to a powerful wizard. He battles against the dark forces, especially Voldemort. His loyalty to his friends and his unwavering sense of right and wrong make him a beloved character.
One of the greatest is Atticus Finch's closing speech in 'To Kill a Mockingbird'. He passionately defends Tom Robinson, a black man wrongly accused, and his speech touches on themes of equality, justice, and the importance of seeing beyond race. It's a powerful statement against prejudice in the deeply segregated South.