Goku has the reputation of being the strongest fighter in the history of Anime, able to go toe to toe with Gods and one of the few who can give Superman a run for his money. Many have pointed out that most of DBZ is the cast holding off the villains until Goku can come and save the day.
But if you really stop to think about it, Goku doesn't have the best win/loss record of all time.
Raditz- Goku dies, Piccolo kills Raditz and Goku as well.
Nappa- Goku does conclusively win this fight.
Vegeta Round 1- Goku holds his own until Vegeta turns into the mighty Ozuru and crushes most of the bones in Goku's body. Krillin, Gohan, and Yajirobi a