zelmusario on 13 July 2015
I would say Miyamoto for a specific individual just because he created an iconic character that was the resurgence of video games. And also since he's really the only famous one I know much about. 
As far as a company goes, all three of the big companies have made incredible strides to advance the industry from a children's toy to a recognized art and entertainment medium. Each in a specific way.
It'll be awhile before I figure out how to do one of these. :P
