I don't get to game very often, so I'm usually a few years behind the latest titles, but the last three games I played through were Tomb Raider, Dishonored, and Far Cry 3. I generally go for games with a cinematic storyline and that aren't too long (15-20 hours). All three did the cinematics perfectly, especially Tomb Raider and Far Cry 3.
My favorite all time "kill a few minutes" game though has to be Just Cause 2. The single player story was fun, but just goofing around by yourself or in the multiplayer mod is fun. I mean, what other game can you attach someone to a propane tank, shot the tank, and watch both fly through the sky. Add all the mods in the multiplayer portion, and the game gets even crazier.
I just picked up Alien Isolation on the steam sale, so I hope to give a try in the next few weeks. Wish I could try it on the Oculus!