the death battles series by screwattack are full of inaccuracy's and bias opinions. not all of them mind you the ones that deal with characters from the same type of cartoon seem to be spot on (American cartoon vs American cartoon anime vs anime) the problum crops up in anime vs cartoon battles. garra vs toph is one example and more notacabley in superman vs goku they seem to be pandering to the american cartoons skills and abilitys while ignoring certain flaws in them(aka making them invincable) while making the anime guy look pathetic/stupid.
an example is in the superman vs goku battle they completly glossed over the fact that superman does not kill unless trully backed into a corner and civilions are in danger and even then it deeply afects him like when he went crazy after killing zod. goku doesent endanger civilians normally and trys to keep his battles away from innocents and according to there calculations goku wouldent be strong enough at first towarrent that. also they didnot facter in goku's sayin ability to power up after a heeling so since super man fights non lethaly goku would have powered up afew times at least. also goku dodges alot more but from what ive seen super man just stands there and takes it most of the time.
also they said superman does not have limets but they conclusivly proved that he fucking does have limets that they themselfs established there just really high. also they forgot supermans powers were completly drained by a nuclear device once which is weaker then any of the attacks goku used in there fight.