Lol. Funny thing is, I thought of the same thing. Every character literally has stats, so why not make everyone recruitable? Want Alfira? Help her with her song. Want Nadira the telescope tiefling, save her from the bugbear. Want Kagha? Spare her and offer to give her a new purpose if she's booted from her position.

I personally would want Minthara for either good or evil playthrough, but definitely evil. And I like Karlach too and Halsin.