" Let me preface this with saying that GT is complete garbage. That said, Omega Shenron wins. GT runs a scaled down power display. If you move Shenron to DBZ to Gohan to GT, the result is the same. GT characters are stronger. You just have to look past the piss poor display. I know that debated run on feats and such, but GT is a special case. The watered down power display must come into consideration. Again, I hate GT. "The only way Omega Shenron wins is if the fight took place in DBZ, in which case no one should be able to beat him.