There are two main characters of my book, Cael and Jack. They're brothers and joint leaders of a nationalistic resistance movement, and so both of immense and equal importance to the overall plot. The character arc of them both is in fact a central focus of the plot. Trouble is, I greatly enjoy writing Cael where Jack gets more of a 'meh.' It's not that I don't like him or find him boring - in fact, I think he's inspiring and his character interesting. But Cael's a lot more entertaining (think of him for the purposes of this thread as a combination of Vaas Montenegro and Zus Bielski from Defiance) and I just click with him to a much greater extent. Does anyone have any tips on how to rectify this, preferably without omitting character traits from either, if possible?