Shove morrowind aside, even though it is good, i dont quite get the hang of it. What i liked is oblivion's quests(not the main quest), especially the dark brotherhood and thieves guild. In fact, the oblivion thieves guild is really a thieves guild, comparing to skyrim's bullshet questline.
Would be interesting to hear if you were given a choice, would you kick all 4 skyrim guild questlines away and bring oblivion's in?