I'm going to vote for Edmund but he is
very closely followed by Peter, Eustace, and Caspian.
Edmund's story, the traitor-turned-king is just so beautiful and it poignantly illustrates the concept of God's grace and forgiveness. As a perfectly flawed human being myself, I've found myself relating to Edmund more and more lately.
Peter is honorable and... well, magnificent.
In the books, he strikes me as a very noble man, one I'd love to meet and be friends with.
Eustace... well, I like him because he cracks me up.
But later in the books, after his transformation, he's so
humbled. And I love that.
Caspian's story is also one I admire, as we were able to watch him go from boy to man and king. His transformation from a boy who isn't confident in himself to a man, a king of Narnia, is amazing to watch.
Overall, the men and kings of Narnia are some of my favorites. Shasta is also epic, as is Tirian and Rilian, etc. So I love them all, but the ones I highlighted here are the ones I settled on for this poll.