SUPER SAIYAN 4 GOKU!!
Dragon Ball Z without a doubt.
There`s just so much action!
You get the strongest fighters in there! Goku`s undefeatable. He can destroy the universe at Super Saiyan 4. (It`ll take time to charge the energy.) Of course he controls his blasts so that they do not do this. He`s obviously a good guy. Try this link. http://www.youtube.com/watch?v=bGtNT-ZZ_Ig
Look at what he did to the Earth without even attacking! He caused massive earthquakes, and hurricanes accross the world. He was just powering up! Think of what he could do with that power. The average human has a powerlevel of 5. (According to the scouter.)
Without turning into a Super Saiyan, his power level is over 1 million. (Now without turning into a Super Saiyan, it`s over fifty million.) Heres his first SS3 transformation! http://www.youtube.com/watch?v=3E_bse0BLJ8