Why is Barry Bonds looked down more than other baseball players who was alleged to use steroids?

There is evidence that suggest that Sammy Sosa, A-Rod, and Rafael Palmeiro and a belief by some that Mark McGwire and Ivan Rodriguez used it yet they are not scorned by the media as BArry Bonds. Also before the period that Bonds was alleged to use steroids he was a hall of famer because he could hit for average, some power, a great defensive player, and could steal well.