I would say Miyamoto... even when Nintendo wasn't tops, they still had more then their share of software hits.
The guy is a prodigy... in that his art is fun. He designs games in a way that seems fundamentally different as a core.
Most game developers become game developers because they want to bring their visions to life and make their kind of games.
Miyamoto seems to develop games... because he wants to create a fun experience for people. He takes random concepts he gets from all kinds of stuff I think he actually likes more then playing videogames, then he creates with it... having outsiders periodically play. So he can see what works and what dosen't... and is largely never afraid to change something because... he doesn't care.
He doesn't care if something compromises his vision, just so long as it's more fun.
In a lot of ways... due to him... Nintendo is making more games for people... then games for themselves. Most other game designers are popular because people like they're ideas... not because they conform their ideas to people.
The difference between Kojima and Suda 51 is just a difference in their ideas.
Miyamoto, if he had the visions of Kojima or Suda would probably still be where he is today, because he wouldn't mind changing his vision to make it a "better" one in his mind.
