My first foray into video games started when I was five with the NES. I was pretty much a Nintendo fanboy playing Nintendo consoles exclusively (GameBoy, N64, GameCube and Wii) until I finally branched out and bought an Xbox360 two years ago. I love action/adventure games the most and am paying a lot more attention to story than I used to. I'm a casual gamer and not really into online competitive play.
Some of my favorite games per console:
N64: Super Mario 64, Legend of Zelda: Ocarina of Time, Super Mario Kart 64, Star Fox 64
GameCube: Eternal Darkness: Sanity's Requiem, Star Wars: Rogue Squadron 2, Prince of Persia, Legend of Zelda: The Wind Waker, Resident Evil 4, Paper Mario 2
Wii: Legend of Zelda: Twilight Princess, Metroid Prime 3, Super Mario Galaxy 2, Okami
Xbox 360: Mass Effect, Mass Effect 2, Dragon Age 2, Batman: Arkham Asylum, Gears of War, Assassin's Creed 2, Red Dead Redemption, Bastion, Shadow Complex, Limbo