Post processing images from the Leica x1

[idenford]

When I went to Vistek to discuss a medium format system, I was told that images that come from a sensor without the anti alias filter process differently in Capture One than if you post process in either CS5 or Lightroom.
As I do most of my pro work with the Nikon Systems, I wonder if the images from point and shoot Leica x1 I just picked will process differently in Capture One and is it worth changing to even if I do not use a Phase One system or related just yet?