I don't know where Lydia is from. I don't know anything about who she is, or what her goals are. I don't understand why she's so willing to die for me. That she's doing it "for honor" is just a cop-out. She never says that. And anyway, why is she doing it for "honor" if that's the reason? I want a story of why honor is so important to her.
You knew who Cass, Boone and Veronica were, and what they hoped to gain or achieve by following you. You could help them, or not. And if you did help them, you could affect their outcome.
Hell, all the NPCs in NV seemed to have more depth. Farkus and Aela (in Skyrim) seem to have a bit more depth than many of the other followers. You know WHY they are following you at least. And you know a little about who they are. But it still pales when compared with the characters of NV.
Some of the College followers...you do a favor for them and they follow you to death. With the favor in question providing only a skeletal sketch of who they are and what they want. And then there are those who do it just for money. They seem to have some unique scripted lines to say (over and over), and that's about it.
hardcoe mode of NV greatly enhanced the immersion also. Food, water and sleep were important and It felt real. And while crafting mostly amounted to weapon modification, repair and bullet reloading, that made sense. Don't care who you are, you aren't going to build a plasma rifle, assault rifle or sub-machinegun from scratch. But you might be able to make it better, with a modular modification. You could stuff bullets with a little more powder. It's not illogical.
Don't get me wrong, I love Skyrim. Been playing it non-stop for a couple of months now. I just think that the devs for Elder Scrolls could learn some more about immersion from the devs for Fallout: New Vegas, for Elder Scrolls VI. If there is one. And I hope there is.

