Many people like Railag, but in my opinion, he's noble to the point of being sickening. He's such a classic type of fallen person (demon, elf?), striving for good, being virtuous and generous. There's not enough genuine substance in him.
What's good about Faidaen? 1. High Elves are my favorite race. 2. He has a decent individual ability. 3. He has the best avatar – he's quite handsome! 4. Poetry – as a person who has learned more than 200 poems in four years of studying philology, I can confidently say that his quatrains are better than many works by famous poets. 5. He's "alive" and "real" – with his weaknesses, without an obvious tendency towards "goodness." He completely won me over with two statements – before the battle with the Overlord, that he might have to kill Isabel, and after the battle, that she should be left in Shio.)))
Added 27 minutes later
In the scenario, I played little and only with the High Elves, so for now, I can say that I liked Ilfina with her unicorn, light magic, and tent, and Wingael with his initiative bonus. I've heard (that is, read) about Ossir. Once, I even met him and his archers on a narrow path. To put it mildly, Ossir impressed me. To tell the truth, that company almost wiped out my stronger army. But I've only played as him once myself.