//Don't care if it's a thread, tutorial, link to SmithMicro's forums or a premade material but I'd love to know if there's a best way to do this.

On a similar subject, are all BagginsBill's lovely materials now defunct in Superfly?//

I don't know if its the best way to do it :D But at least its the way I like to do it.

I normally use two different setup, which depend on the type of glass. If its for windows i use one of the following.

I think there are benefits with both. The cycle setup is based on the glass shader, which include refractions which you would expect in glass. However I think its easier to customize the glass using the physical setup as you have more dials to adjust without having to add a lot of extra cycle nodes. And in this example as its thin glass like in a window, there is not a huge benefit from the refraction in the glass shader, as thin window glass have near to no refraction, just as a windshield etc. Also I think its easier to add dirt to the glass when using the physical setup compared to a cycle one.

If you have thick glass like in this example.

the cycle shader is a lot better as now the refraction really shows. But again the physical setup can be useful if you for instant have to make a light bulb and dont want to model it with thickness etc.

So at least to me it depends on what type of glass im after or working with. I think both give good results with very basic setups.