As per the Jaffe keynote, what game has the kind of gameplay that you will think that will still be renowned or enjoyable in 50 years time?
The first to come to my mind is Devil May Cry (and by extension Bayonetta). Even today I can pick it up and have a huge grin on my face as I execute massive, fluid combos as if I had spent the last 20 hours playing.
I think it is also a big reason why I love Rise of Nations as it takes the gameplay of AoE and Civ and melds it into something incredibly enjoyable to wield. I still boot it up today and have a great time, suddenly it is 1am and I have to be up in 6 hours for work.
That is where a game like GTA3 falls down for me. At the moment I still think of it fondly because of the massive leap in technology that it took, as well as the cinematic leap with the storyline. Trying to play it today though, is a painful chore. The gameplay is really rough. It is the kind of game that would need more than a HD polish up, it would need all the improvements that the genre has brought along since. The same will be said of GTA4 once the graphics become antiquated.