I agree. In Oblivion there was a quest about that Paranoid guy and you had multiple options:
-You could lie to him and tell him not the truth
-Try to convince him no one was against him
And even then you could have:
-Told the guards what he was planning
-Have the guards go after
-He could attack you or not
-You could attack the people paranoid guy wanted you to attack.
That's completely lost onto Skyrim. You don't have those branching options as you once did. It's just Yes or No and even then your No is completely ignored.
This is simply not true at all. Firstly, I see people referencing NV. But that was Obsidian, and they are mostly the same folks who did the first two Fallouts, the absolute best of any of them, IMO. They carried over the story that was supposed to be Fallout Van Buren, keeping the older faction system with choices. Beth bought out the franchise when Black Isle Studios went under and went in a totally different direction with Fallout 3, which I liked, because it was different. Vegas just re-used all of 3's assets and perks while tacking on more. I loved the choices in the game, but felt not much more to want to play it since I experienced the graphics, perks and mechanics with 3 and the story carry over from Fallout 1 and 2, nothing fresh there, for me mind you.
Now to Skyrim and choices.
That one quest you mention in Oblivion is about the only one, you are forced with others to do as they guide you, or you just simply don't do them.
Skyrim, a few that I have found:
You have a choice what to do with Cicero when he asked for help.
You have a choice what to do with Paarthurnax.
You have a choice what to do with Odahviing.
You have a choice on how to appraoch the Dark Brotherhood
These are just a few that I have found and I haven't even come close to finishing the DB and have not started any other quests yet in Skyrim, so that remains to be seen. This, outside of some great expository dialogue I encounter with many NPC in Skyrim as well. This, when you consider the bad dialogue in Oblivion that amounted to no more than quest giving or yes or no answers, nothing more with maybe 6 voice actors altogether. Now, does Skyrim offer player agency like in NV, not even close, it's not as good as Morrowind in that respect either, and none of the TES games (except for maybe Daggerfall) have really ever come close to Bioware when it comes to story and choices, but that is what Bioware always did best, and they didn't offer large open world games. But when you compare having choices to Oblivion, that is total nuts, Oblivion was just awful at choices having meaning.