I saw this thread back in November, wanted to participate but was too busy with finding a new Job (redundancy is a bitch). The overall list is ok, some fantastic games like Grim Fandango are too low and Planetscape Torment is nowhere to be seen but this site has lots of younger people on it so they probably never played those game. I agree with the number 1 game, Ocarina Of Time is an unmatched experience and nice to see FF13 rank high, that game gets nowhere near the amount of credit it deserves.
Edit: Surprised there is no Grand Theft Auto IV, isn't it considered the game of the generation?