This is a really interesting comparison of the same RAW image being converted by different RAW image processors. I've shot in RAW for a really long time, but never given much consideration to how the image is processed differently with different tools. This is a really interesting comparison of the same photo processed with different tools.
I've not tried Photoninja as it is not retina ready (yuck), but I did try Iridient and Capture One the other day. I have to say, I was impressed with the detail I got with Iridient, though the camera I was using was not officially supported by Lightroom yet.