I just replayed Morrowind last year. ->The story is better. Spoiler, you become Jesus, and people treat you like it too. Unlike in Skyrim where you are treated like a child even though you are the savior of the universe or whatever for killing a bunch of easily defeated and identical dragons. ->There are more quests and the quests have more of an effect on the world. (not much but more than Skyrim and Oblivion) ->more guilds, and the guild quests actually feel quite epic at times and last a while, and give meaningful rewards and even meaningful titles ->there are more skills and items, and thus more ways to play the game ->it still plays and looks like a modern RPG, unlike Daggerfall ->beautiful and unique places, landscapes, and creatures ->They didn't need to use voice actors, so the dialogue is more unique to each character, you can have conversations that progress logically, and the characters don't treat you like an idiot like they do in Skyrim ->it is more immersive. all these things together make for a more immersive experience, ->the list goes on and on.