Miyamoto: 21
Nomura: 1
Kojima: 4
Miyamoto +1
Out of the chosen 3 he creates game play. Thus is a better designer.
Nomura
Brings a spiritual element to his games and is good at story telling. But really hasn't designed anything in regards to games. Just does story and art.
Kojima
Excels at interactive movie. like Nomura doesn't really design game play, but does an excellent job integrating movie like gaming.
Edit: you would be best putting in Wil Wright, Sid Mier and Romero/Carmak into the list instead of Nomura and Kojima. Huh I honesltly can't think of any other Japanese Designers with signifigant impact.
Squilliam: On Vgcharts its a commonly accepted practice to twist the bounds of plausibility in order to support your argument or agenda so I think its pretty cool that this gives me the precedent to say whatever I damn well please.
