To make perfect paths for your town I suggest you to first go around and check everything out : where are the rocks, the neighbors houses, public works projects that can't be demolished etc. Once you've done this, visualize the perfect route for your path, personally I like to give the rocks a certain perimeter. There are times that you'll have to demolish and reconstruct bridges for the path to work perfectly, believe me, I had to demolish 2. You'll have to cut down some trees, but let's hope that they won't be that many.
That's all the advice I can think about for now, mostly because just recently added my own paths (; You can check them out in my dream to see if you're convinced tough kekeke