...It'd be like asking... "Who makes the best vehicles?".
There is some subjectivity (hardness, rate of dishing, rate of cutting, porosity, etc.). However, some stones are unquestionably better than others. The Gesshin stones are the way they are because a load of people of various levels of experience decided these characteristics were ideal and they'd be willing to pay for the advantages and Jon and Sara took the information and made it happen....There is just no one best brand, because it is not only subjective...
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