I'm a big RPG nut, so I was blown away by Morrowind.
The open-ended style of gameplay and realism of the world left me very impressed. Mostly because of the 'freedom of choices' open-ended game design. That is what really impressed me (more-so than other RPG's). So did Daggerfall during its own time...(do I sound biased or impartial??? heheh )
And most definetely The Legend of Zelda, Ocarina of time. Definetely one of the most fun game's ive ever played (too bad the replay-ability isn't so hot).
<P ID="edit"><FONT SIZE=-1><EM>Edited by othernate on 04/11/03 04:49 PM.</EM></FONT></P>