I picked up God of War for my PS2 the other day and have hardly been able to put it down. It’s more than just a kick ass Action/RPG game. 
There are a series of puzzles and quick moves involved as well.
If anyone remembers the arcade game, Die Hard, there were places in the game where you would have to move the joystick or press a button in order to avoid certain obstacles. God of War has taken that to the next level.
Blood, guts, daemons, boobs, and Greek mythology, what else do you need? :p