this is from mark martine of quora.com "No, Goku is way stronger.
ONE (the creator of OPM ) said that Saitama’s full powered punch could destroy half of the universe, Assuming that’s true then he isn’t really strong. In DBZ when Freeza transformed into his final form king Kai said: “Freeza now has the power to destroy the universe as we know it”.
https://www.quora.com/Goku-vs-Saitama-One-Punch-Man-Who-will-win