I can see now what I did there, I'm not a native speaker so formulating complex ideas is still pretty hard for me in english.
It was wrong of me to say that Pits are less dangerous than your average mutt - because that is clearly not the case, since your average mutt is NOT 100 LBS of muscle and determination.
I should of said that pits are (inherently) less likely to attack humans than your average mutt - meaning they take "encouragement" (read training) towards human agression.
And there are a LOT more pitbull fatalaties than your average mutt. See http://www.dogsbite.org/bite-fatalities-2010.htm