I really need to know what ONE has that other authors don't. It's hard to believe you can win any versus match just by saying "well my character never loses"
Is Saitama just a spoiled baby and every other show must concede he wins because his author said so.
Finally Someone Who Watches and Comprehends both the One Punch Man and Dragon Ball Series, Knows how the actual fight would go, it's either in a Stalemate or Goku loses , if you carry out deep analysis on both Characters,
If you Scrupulously follow their character based on Both Authors Narratives, Goku Can die, he can get exhausted due to Stamina, meanwhile saitama isn't shown to abide in any of these as His character still remains Invincible, He simple cannot Lose to anyone