i do have to say that i like elgar'nan and ghilan'nain as our primary villains. because they look like cartoon bad guys on the surface but if you look a little deeper and find all those hidden little notes and codex entries, it's obvious they actually do have complexity that they don't want us to see.
ghilan'nain is actively in mourning. not just for andruil, but also for her fucked up little experiment of an archdemon, her most perfect creation, razikale. at the end of fire and ice, she is ready to throw herself into a fight that she might not win because she's blinded by her own grief, and she only doesn't because elgar'nan holds her hand and pulls her away. protects her. we can find notes that talk about how elgar'nan is concerned that she's not taking time to mourn properly. we know she's checked in on her first creations, the halla, despite the fact that she writes about them in this sort of detached, almost patronizing way. she calls them something she made when she was "untraveled and naive" and that she could never make them again, but she visited them just to see what they might have become in her absence. like she cares more than she wants to let herself.
and elgar'nan calls her sister, despite the fact that ghilan'nain is the youngest of them. he lets her experiment on lusacan for the express purpose of cheering her up. and when she dies he seems legitimately torn apart by it. what should be an opportunity for the first of the firstborn to finally become the sole tyrant he was practically made to be is instead him becoming completely and utterly alone, the only remaining of his kind. i don't think it's coincidence that both he and solas drift to each other as they do, even if it is as enemies. they're too alike, and they're also the only remnants of the old world, their world, that either of them have.
i can't say that i'm particularly sympathetic to either of them—they're both unrepentant monsters who have committed atrocities across millenia, but the fact that they have this hidden depth reminds me that at of the day they are not really anything that no one else is. they are very powerful mages that other people called gods. and people can be very sentimental, indeed.
