Purely by the NPC distribution alone:
as a "good" aligned hero you have Karlach and Wyll who are goodie-two-shoes and will do no wrong, you have Halsin who has a quest in act 2, you have Jaheira and Minsc
as evil, all you get is Minthara who has barely any content that is tied to her, and unlike Halsin, you need to rescue her to even get her, while Halsin is forced upon you right away.
(i don't include npcs you get to keep regardless of alignment, i.e. Lae'zel, Astarion, Shart and Gale)
There's no npc that will leave you because they don't like heroics, there's no npc that is strictly evil-aligned. This whole business with grove is the only major choice you make (unless you're a durge) and it doesn't feel like it is maintained along the plot.
So confusing, how "evil" path feels like an underdeveloped afterthought no one cares about expanding. Don't get me started on evil ending - you get 1:30 minute cutscene, "in my name" and that's it. So bland and dull compared to the good ending.
See, i just think if devs don't care to flesh it out - why even include it? Feels like a tease, tbh.
I think it is lame that the devs have gone out of their way to make Minthara recruitable as a good player. It would be better if she were only available when you make the decision to raid the Grove (losing Will and Karlach in the process). This would be a choice which has consequences.
It would also be cool if there were 1 or 2 other evil NPCs which could be recruited along the way. Perhaps in the Underdark or in the Shadow Lands.
