Yeah, the Goku is a cartoon thing is silly. Superman is a cartoon as well! Goku started as a comic...so did Superman. Goku has a cartoon now, so does Superman.
If you've seen a lot of Superman cartoons and a lot of Dragonball cartoons, then the obvious choice is Goku. Superman can stop bullets, stop airplanes (with a huge amount of effort), and beat up on some baddies, but he can't blow up a planet with an energy beam. That pretty much settles it right there.
I do enjoy some competitions like this, no matter how fanboyish it becomes.
-Lasereth