this one is the better comparison. Super Buu starts to whoop Goku in his SS3 form. Gotenks powered down before he could really fight Goku, but Goku knew it was going to take the Potara rings to stop him. If Goku could've won at anytime by himself he would have. Vegoto is the only one that just wouldn't win, because he wanted to save his friends, and their kids.