Man I could go on so long about this topic. I have over 30 consoles and the one I know best is the N64, having grown up with it and adding more games over the years!
I still think Ocarina of Time is the biggest masterpiece in its library so I've voted for that but there's many other strong choices - you can make a good argument for SM 64 at least in terms of importance (ie. showing the world how to do proper 3D with a camera that the player can control).







