When creating "linework" to see "walls above" or "walls below" its best to have those "walls" with Mitered corners, so that you only have ONE line to match, and those lines meet at the corner. With corners defaulting to "butt", i have to change every corner, this is time consuming, and if left as "butt" joints you have to identify multiple lines to finish the corner.
My WISH, is for Revit to allow users to set the DEFAULT joint as what ever works best for their drawings. in my case, that preference would be "miter" wall joints.