novasonic on 01 June 2014
NES. If Nintendo and Sega never stepped in to clean up Atari and Coleco's mess, the home console gaming industry simply wouldn't exist. The NES was more popular than the Master System, so I say NES.
It's really not even debatable. Every other innovation is just building on the foundation Nintendo and Sega built.
8th gen predictions. (made early 2014)
PS4: 60-65m
WiiU: 30-35m
X1: 30-35m
3DS: 80-85m
PSV: 15-20m
