This is not a scientific test. This is just an observation from many shots taken over the last few months. The noise reduction in Nikon Capture 1.2 is better than previous versions of Capture. It's also far better than the built in NR. Sure, Noise Ninja "could" produce better results with tweaking. But Nikon knows it's cameras and sensors, and with very little fuss it does a damn good job.
Speaking of my WRX. My Lease is ending soon. As my lease approaches it's end, there doesn't seem to be anything on the market (especially not the new WRX) for me to replace it with, save for the new Mitsubishi Evo which isn't available yet. Luckily I still like my car.