Top tier : FF13, Valkyria Chronicles, and Elder Scrolls IV : Oblivion
Mid/Top tier : Star Ocean 4, NIER
Mid Tier : Dragon Age Origins, WKC (To the contrary of ajescent I feel this game is a poor man's FF12)
If you couldn't get into Elder Scrolls IV Oblivion, I doubt you'll get into Fallout 3.
All hail the KING, Andrespetmonkey