NES or PS1
NES revived the videogame market after the crash while the PS1 expanded that market beyond what anyone thought was possible at the time (first console to pass 100 million in sales)
It will be interesting though how the Wii effects the industry in the longer term -- no one can say it hasn't influenced the industry but who knows how much it will influence the future (my guess is that profiting off hardware will become standard, but motion controls may not)







