Ok, this question is based around the concept that if you set up a scene with an orthographic camera with it's size set to 1/2 of your target screen resolution, there will be a 1:1 ratio between world units in Unity and screen pixels. That is to say, 1 unit = 1 pixel.
Now, let's say you have a scene set up with an orthographic camera set much smaller, and you want to re-set up the scene as described above so that you know how big things will be in pixels. Obviously things in the scene will have to be scaled up.
But... what is the difference between scaling up the objects already in the scene using their transform's scale settings, or re-exporting the objects from Maya at a larger scale so that they are the appropriate size in the scene, and their transform's scale is 1,1,1?
Does it make a difference? Is one way better than the other?