I need some help in this decision

[a.l.e.x59]

XBox 360

The Orange Box (Very good game. Some claim it is better than Halo)

Bioshock (Very good game. Got Game of the Year in at least one website)

Forza Mortorsport (Good, but not as good as Gran Turismo 3)

Naruto: Rise of A Ninja (Just misses the 80% mark on Game Rankings. Recommend any other game on the list)

Saints Row (Good reviews)

The Elder Scrolls IV: Olbivion (Good reviews)

Dead Rising (Sand box game like Grand Theft Auto)

Assassin's Creed (Good. No replay value)

Xbox

Halo: Combat Evolved (Xbox at its best)

Stars Wars: Knights of The Old Republic (Good reviews, but, it's no Star Wars movie)

Prince of Persia: The Sands of Time (Good reviews. Does not interest me)

The Elder Scrolls III: Morrowind (Good reviews)

PS2

Ratchet and Clank (Awesome platformer)

Jak and Daxter (Awesome platformer)

Sly 2: Band of Theives (Decent platformer)

Gran Turismo 3: A-Spec (One of the greatest racing games of all time)

Gran Turismo 4 (Great, but not as good as Gran Turismo 3)