I don't know, they are all the same. They really are.
Daggerfall is considered a sophisticated game, and rightly so, but when you get down to what you do in the game, you find that it involves the conduct of the same mundane things.
Join the Fighter's Guild and kill some animals in the cellar.
Go to a city, search for the man you need, and get whatever you need out of him.
Retrieve a rare book from a large dungeon.
Do other such mundane work until you are of the right level to be allowed into certain quests.
And so on. Admittedly, all of that happens in much larger dungeons, much larger cities, and a much larger world than latter Elder Scrolls game. And it involves a non-linear main quest with three plotlines which can be pursued in any order and to any extent. And the fights are harder, with liches against whom you need spell absorption and werewolves against whom you need silver weapons.
But Daggerfall really wasn't a game to keep me engaged beyond a week or two. Just like Oblivion, but for different reasons. I just start thinking, "What else is there?" And I know the answer - very different ways of doing the same thing all over again.
Skyrim is a much more dumbed down game than Daggerfall, no doubt. But there's a larger variety of things to do in Skyrim, even though each of them has less depth than Daggerfall.
Did Daggerfall involve you climbing steep mountains to their highest peak, mine their rare ebony ores, and bring them down to a smelter in a nearby city so you can build a rare ebony suit from it? No, it did not. Did Daggerfall have restricted orc camps and orc stations into which you can sneak in order to freeload and steal all their precious stuff? No, it did not. Simple things like that made Skyrim a lot of fun for me.