Oblivion is okay. It seems, though, it makes up in length and story with landscaping and special effects. Whilst Morrowind balances out and really sets a mood. In other words, Oblivion is apparently in a time of chaos and Daedric threat....but it looks like everything is hunky-Dorry. How does that work? In Morrowind, the land and the people seem to know what is happening, and they aren't just yentas who walk into walls.
Oblivion introduces a newer, easy-to-use Magicka system and combat, while Morrowind seems to lack in that area. It seems that combat is the only way to level up in Morrowind, and, like the story, it takes time and patience. Oblivion just kinda takes randomly smiting stuff with lightning to level up 50 times. And the quick travel in Oblivion king of killed the feel of the beautiful country-side, and it added to the length of the game.
The AI in Oblivion is quite good, but it was made on a later date the Morrowind. With more interactive objects, it made RPing easier, and the animation gave it a feel of reality to it- plus the fact the people could TALK and didn't just give you a book to read.
Then through a modding perceptive, Oblivion is much easier as everything is pre-set, though if you want variety you must learn modding and re-coloring...which isn't very easy. Morrowind gave a very open-ended feel and it's easy amount of textures and what not made re-coloring easy though less detailed.
Morrowind lasts longer, but Oblivion gives a lot of choice. Morrowind is a classic game, and leaves a large impression, and Oblivion doesn't fall far behind. They are both good games, but I thing Morrowind wins by an inch.
Tl;dr -
Oblivion is playground, Morrowind is a home.OBLIVION IS NOT A GAME. If you want to post a game post the full name it is the Elder scrolls IV:oblivion DO THE FULL NAME
NoFU