To clearly show the increased detail in the super resolution upscale of the NTSC GOUT, I performed a texture analysis on a number of frames upscaled with the Avisynth Spline64Resize and super resolution. The results are very convincing (and pretty cool looking).

In the below comparisons you can see the results of the texture analysis for a number of screenshots:

In the below example you can also see the difference with sharpening the Avisynth Spline64Resize upscale to "the same level of detail":

http://screenshotcomparison.com/comparison/121116

It is clear from this example that sharpening, while enhancing some of the detail, also enhances the noise. For the super resolution on the other hand the enhancements are both more detailed and cleaner.