Hi,
i think we need a more powerful Measure tool in Blender, not only like is in the current one in Blender that measures the distance between center of the objects, but also to be able to:
snap to vertices and edges of one particular and read the distance between them
Object
to be able to snap to vertex/edge of different Objects and be able to measure the distance from one to another
-but not just from one object center to another object center (like is right now)
as a reference: here is how measure works in Sketchup: (not to mention how awesome would be to have similar tool in Blender)