I'm not sure if this was to a specific member, but regardless it's a good question so it deserves an answer
I should preface this by saying I probably don't play games as much as I used.I probably played games about 30 hours a week during 2006 - 20012, but sadly it's a rather more abstemious 5 - 10 hours with life occluding my passage into the fantastical.
1 Fallout: New Vegas - I still play it but on a spasmodic basis, probably averaging about 5 - 8 hours on a month.
2 Fallout 3 - I've finally been burned out on it, I still play it but it's a rare occasion.Though that will be rectified when the hype builds for Fallout 4.
3 Bioshock: Infinite - Loved it initially along with the DLCs, but I haven't played this game since the credits for burial at sea 2 rolled.But it's such a salient game that i'll most likely revisit Columbia in the future.
4 Fallout 1 - I still play this on a weekly/biweekly basis
5 Metal Gear Solid 2 - Same story as Bioshock: Infinite
6 The walking dead season 1 - *In a poignant and forlorn voice* I've made my choices now it's up with me to live with them
7 Final Fantasy 6 - I haven't played it in years but I will return to it as some point.
8 Mass Effect 2 - I only recently finished Mass Effect 2, one of the games I'm most agog to play again.
9 Super Mario Galaxy - Loved it but I don't plan on playing it anytime soon.
10 The Last of Us/Fallout 2 - Loved the last of us but I don't plan on playing it anytime soon as for fallout 2 I play it on a weekly basis.
I probably only play 3 out of 11 games on a consistent basis.