Just a quick observation regarding Ver'yll Wenkiir, the Drow Ranger hireling: when you view his stats in Wither's list, his info says he's a Llolth-Sworn Drow. Upon hiring him, his info changes to say he's a Seldarine Drow.
Following up, for the heck of it: I started another playthrough and have this hireling again and he just made a comment that confirms that he is intended to be a Seldarine Drow. In the Underdark, down from the Selunite Outpost/Spectator fight/poison vents, there are spiderwebs blocking a heavy chest, spider eggs and spider silk cocoons. After lockpicking that chest, Ver'yll said, "Lolth's [sic] sigils on every box. If this place wasn't already abandoned, I'd set it ablaze."