For what it's worth, here's a comparison of RealSkinShader and HyperReal.

The first is a P4 render, using the HyperReal textures "out of the box" - no bump maps applied.

The second is the RealSkinShader applied to the HyperReal textures. Same light set as the P4 render, but with the lights changed to raytrace shadows and rendered in firefly. I chose the "use noise as bumpmaps" option in RSS for this render.

The third is the HyperReal textures with the HyperReal script. Same light settings as render 2.

Keep in mind this is not even close to the best these scripts can produce. Just a quick-and-dirty comparison using the default settings for each script.