x20 and Photo Ninja
I just bought a X20 and was not real happy about the jpg output. I tried a few raw developers and settled on Lightroom 5 because of the full set of features. However, nothing works as well as Photo Ninja for detail and noise. This screen shot shows the best I could do with Lightroom on the left and Ninja on the right. On the bottom you can see the source of the two files to get an idea of the crop area. The downside of Photo Ninja is that it doesn't auto correct the lens distortion like Lightroom and it is really only a dedicated raw developer.