to take full advantage of VW in the architectural side of things having Architect is almost a must
then to make the best use of the tools one has to think about objects rather the lines
the lines weights then become less of an issue
especially if colour fills are use; which prints as grey tone when set up an engineered copier
as for classes we do not follow the standards but
try to create a hiearchy that relates the the layers.
We use more than one file for a typical 2 or 3 storey residential project - we workgroup reference if required
so a Site Plan file would have
2 or 3 layers to get info to sit front to back
LL (layerlink) to bring in WGR
and classes would have
site-text
site-misc
site-road
site-cars
text-titles
text-misc
text-callout
text-zoning info
acadimport- we would move the acad layers here
etc...