The measured performance box in Stereophile has results almost identical to those on AnalogPlanets review of the AT120. Pioneer obviously has some differences, in plinth and arm damping, as well as detachable cords and interconnects. And AT has the built in pre-amp and usb crap. Supposedly the AT can be much improved by bypassing that.
So, how much improvement do you get for another $400? Does antiskate on the Pioneer work?