1. Persona 4.
2. Operation Flashpoint.
3. Metal Gear Solid. (1 or 3, cant decide)
I have my reasons for each - Persona 4 has the best characters, writing and psychological aspects I've ever seen in a game - no game has ever made me care about the characters as much as that did. Flashpoint just consumed my childhood, it was the first level editor I ever used, and it was also my first sandbox. It was brilliant. And I'm sure everyone knows about metal gear solid. It's insane, it's brilliant.
These arn't the best games ever, objectively theres alot to hate in some cases (The anime style of persona for example). This is just my subjective opinion. I realise they're flawed, but I don't care, nothing has come close to what I experienced with them.
So what about you guys?