It's probably between 3 and 4 for me.
I think what I am maybe looking for is more internal consistency. The style of the majority of the body is straight line/single radius/straight line/radius. The double curve at the top bout/neck is a bit of an exception, but otherwise it applies except for your lower horns, which all have complex and double curves. So I wonder what it would look like if you made the whole body line/radius, and made the neck joint on the top bout a single radius meeting the neck at 90 degrees, and gave the lower horn short straight sections between the radii?
It's odd, you've got me thinking about body design in a depth I haven't before. It now seems to me that a consistency and flow between the different areas is what is required. Maybe if I'd realised this before my little parlour semi wouldn't have been so goddam ugly! I suppose the other thing I'm realising is that body design is damn difficult.
Another interesting question is how to apply the line/radius/line theme to a headstock. Maybe the double curve on the top bout to neck is right after all if it mirrors a double curve that is pretty much inevitable at the other end of the neck?