Yeah, it's the modeler, not the program, which makes a good model.
That said, Blender will be much better for future use, if you ever want to do modeling outside of Blockland. It's also free. Milkshape doesn't have curves, it barely has animation and it doesn't have any sort of rendering. At this point, its only purpose is to make models for Blockland. But Blender has a billion uses, so I think that if anyone wants to learn modeling, they should start with Blender.