Suggested by Destroyer Cooler is a pretty impressive DBZ villain who was able to take on Goku and Vegeta. While he never got to Super Saiyan 2 level, this is more than enough to take down Dr Doom. Doom may have obtained the Odin Force and even the Beyonder’s abilities but they are not enough to take on this level of threat. Cooler could speed blitz the good doctor as soon as the match has started. Cooler wins.