If I were to focus one only one (and most the time I do), it’d be this guy.
Adraxis. A former English knight of an ancient realm foolishly sought out glory by slaying a dragon, only to be tricked into being turned into one himself by a sorcerer. He was able to kill the sorcerer before the spell was completed though, leaving him a dragon/man hybrid. Most notably, he has massive wings coming from his back as well has small horns on his head, claws, and dragon’s eyes. On top of incredible flying abilities, he also is amazingly strong and fast, has heightened senses, and can create fire from nothing, even by breathing it out if need be. He has lived through the ages and helps when he can but usually lives a solitary life.