I've played Morrowind and I liked it - interesting world to explore, nice main plot, many sub-quests etc. - one of the best CRPG!
Howewer the irritating thing was that uou had to travel so long to deliver 20 bottles of spirits to a isolated mine somewhere in the middle of nowhere...
On the other side the subquests lacked a bit of story = deliver, kill, find or sometimes get someone to give you something (support, item) Baldurs Gate 2, Icewind Dale 1 and 2, Fallouts or Arcanum had better story based subquests to be honest....
Though if I had the right PC I would play Oblivion no matter what...