I feel like I'm missing something here, but when you perform a solid operation (for example: cut a flat area out of a sloping site mesh) you can see that affect in all views except plan views.
My wish would be to have the ability to show all object accurately in plan, which would include there current shape, not their shape prior to being operated on
"A plan view is an orthographic projection of a 3-dimensional object from the position of a horizontal plane through the object. In other words, a plan is a section viewed from the top. In such views, the portion of the object above the plane is omitted to reveal what lies beyond. In the case of a floor plan, the roof and upper part of the walls may be left out. Basically, a plan view is just another name for the top view of a 3D object".
3D ViewElevationPlanSection