I feel like Red Dead Redemption and Fallout New Vegas belong on that list. Redemption for it's open world, amazing physics, great plot, and absurdly well done multiplayer, not to mention the beautiful setting, New Vegas because of the plot, which is not only extremely well written, it's ABSURDLY interactive: Every group in it's sprawling landscape has a way they view you, and based on your actions in relation to them every group also has a final cut-scene solution for how they turned out: epic. As for last generation: Shadow of the Colossus, Killer7? I mean there are a ton last generation, and I really could keep going this generation I just thought up two more while I was sitting here (Minecraft, Amnesia).
Straight up: I've played a lot of great games this generation, your friend just sounds like a snob, however I do get super nostalgic about the SNES and PSX as well, but still games march on and for the MASSIVE SEA OF CRAP that is being pumped out there are always a handful of titles every year that do something worth seeing.