I would like a Skm to Octane materials wizard. How about you?
I think 9/10 SketchUppers a mainly doing architectural visulaiation, so 9/10 materials are easily converted. We use SketchUp because we like the simplicity, so we will like that same simplicity in the plugin. We do not nesessarily want to know how to setup a metalic carpaint shader in the node based editor the 1/10 times we need it, but need to get the job done.
So, how about adding some material types to the conversions with "layman settings";
Wood (could maby set the wood texture in the bump and specular for and set the index right, and would try to get that subtle difference in reflectivity of the wood grain at low grazing angles) (Could have an option of: untreated, oiled, satin, glossy, polished)
Car Paint
Metal
Architectural Glass
Plastic
Rubber
Foilage or Leaf
... maybe some others to add here?
After conversion with the wizard you could then tweak the setting in the editor with less fuss, without setting all nodes separately and looking up correct index of refraction for the materials.
With SketchUp is not about what you can do with it, but about what YOU can do with it.