Poll or question??? Shaders for Blender.(skin)

Firstly, you'll need to understand the basics of various renderers, and why they use the shader schemes they do. Then you need to know a little about BSDF, so you can see how the calculation is relevant in the various renderers.
https://en.wikipedia.org/wiki/Bidirectional_scattering_distribution_function
Also, you really need to know fairly well all the parameters your renderer uses, so you know how to choose/modify/build whatever shader you need.

So, Blender has a native node system, which is extensible to just about any PBR you can connect to Blender (e.g. Cycles, Eevee). Blender's native shaders are basically like presets of relevant parameters to be piped to the renderer.
https://docs.blender.org/manual/en/latest/render/shader_nodes/shader/index.html

Most Blender skin materials incorporate Principled BSDF, Principled Hair BSDF, and sometimes Principled Volume. Principled BSDF most closely resembles Daz's Uber shader, with similar families of similar parameters. You wouldn't want to use the standard BSDF, since it's missing some of the layers needed to simulate skin.
Zskin is basically an extension of Principled BSDF, with more bells and whistles.

So you know that there is no 1:1 translation between shaders. "converters" can be helpful but will not carry your render. So, trying to copy-paste MDL values to BSDF simply cannot work, then re-read above 🙂

You can try Zskin, it's good and useful. If you take time to get some render engine grease on your hands, you can craft or modify your own Principled BSDF for a unique shader. Personally I prefer to keep things simple unless the improvement warrants beefing things up.

As far as looking good, it's like anything, there's great ones and terrible ones. Try getting your hands on a nice looking example and study the shaders. Practice making tweaks to (any) other shaders until you're satisfied you can imagine an effect, make a tweak or two and get it, or at least close.
Good looking skins are going to pay very special attention to certain params like Subsurface Scattering and various specularity/reflectance params, and will take the most time to master.