I agree with the around the walls plan. In any given space, you get more square footage of layout if you do around the walls rather than island style. Also you can put a lot of building rears (most often seen from trains), or building fronts along walls to create town scenes with little depth.
With a name like Pike Creek, I expected it to be based on kentucky coal fields.
Thanks, Jim. Can't say I am familiar with the great state of KY. In my case, Pike Creek is the area of Delaware where I reside.