Which is the most significant (important) console in history?

[h2ohno]

I'd say it's a tie between the OG consoles from the 70s like the Magnabox Odessey, which kickstarted the inductsry, and the NES, which brought it back from the brink. Without the NES there'd be no Sege Genesis, Playstation, or Xbox. The Nes is where the standards for level and game design were set.