Oblivion is the greatest invention since air.
The Gameplayer : The Game is perfect in every since of the word in terms of gameplay, it has greatly improved the basic rpg concept with a more "Condemned" style, rather than like the old morrowind. There are literly thousands of things to do in this over-expanding game. Let me tell you now, if you like your social life, do not play this game.
The Sound : The great composer, who did the musical scores for guild wars is back, and better than ever. The music fits in so well, it feels attached completly to the game. The sound effects are detailed to every little thing you do, if you hit wood, it sounds like hitting wood, if you hit a brick wall, it sounds like you hit a brick wall.
The Graphics : Must i even say how perfect these graphics are? The great minds down at bethesda put so much details into the general world, that, i've told a few people its more realistic than life itself. From everything to trees, to fire, to buildings, its all there.
Value : Oh man, there is an unlimited game here, Anything can happen. You want to invest in a store? You can! If you want to go raiding a local bandit camp, You can! You want to buy a house, and decorate it up? You can! There is an unlimited world out there, one just waiting to be explored.
The verdict : BUY OBLIVION!