If some villain came and threten to destroy planet Earth and you had one character to choose to protect planet earth, who would you choose? All of them would be in level Super Saiyan 2. i would choose Goku because he always finds a way to win, and he has more experienced then any other Super Saiyans.
If Piccolo had the power of a SSJ2 then I'd pick him, he wouldnt toy around with the villian, and finish them quickly.
The only person that toys around with someone is Vegeta, Goku doesn't toy around with them, he just gives them a chance to leave planet Earth,because he doesn't want to hurt them, but when they obviously refuse then he beats them.
True, but still they always refuse so it doesn't do any damage, so really that doesn't really affect the fight. Then he mostly beats up all of them.
Yeah they would come stronger I agree with that, but in the mean time they would be gone Goku would be ouit there trainning everyday and he himself would become stonger.
Their are always threats against planet earth, or wherever Goku is. So he always trains to make himself stronger, to protect earth in case someone does attack it.
If he let the biggest threat go, then he probably would relax for a bit, normally the threats come after periods of years.
