Suggested by Random Tatsumi is a tough guy but to defeat Goku you have to be at a far higher level. You have to be able to move massively faster than the speed of light. Tatsumi would also need to be able to destroy planets on a whim which doesn’t seem to be the case at the moment. No matter how you slice it, he is no match for Goku but maybe he will be someday. Goku wins.