Alright, there is plenty of discussion out there on The Black Star vs Azura's Star, but these debates tend to focus on the material advantages of one over the other.
So here's the thing that makes me scratch my head... While I would not, by any means, describe myself as a hardcore roleplayer, I do try to create a certain type of character and I attempt to make decisions that seem fitting to their personalities or overall leanings.
However, deciding on which Star to acquire is actually quite ambiguous when it comes to any kind of a "Good" vs "Evil" dichotomy... Azura has an obvious dark aspect (especially when it comes to Malyn's story as explained by Nelacar). Therefore, picking Azura's Star isn't necessarily the "better" choice. On the other hand.... The Black Star is capable of trapping human/elven souls. Putting aside real world arguments about species supremacy , that isn't exactly "virtuous" either.
Thoughts? I'm currently at that decision point with a relatively "good" character, and I'm not certain which direction to go in terms of ethical ground. In this case I don't actually care about the benefits of easily trapping grand souls, nor am I concerned about the potential follower if you go the Azura route (I already have 2 modded companions, that is plenty). I'm looking at this more from a philosophical perspective. Or as much as that is possible in a game, a Bethsoft title no less.