This is a tough one. I think North America and Japan are pretty close. Europe makes great games too. But I think in general Japan makes the types of games I love. They tend to emphasize gameplay above all else. The level of artistry is a step up too in my opinion. So I give the .1 advantage to Japan over North America. And Europe has CD Project Red, who are one of the best for sure. They definitely deserve credit too.
What do you think SW? Generally speaking, who makes the best games - North America, Europe, or Japan?