Terminal strips are good for when you need to get at all of the lights wiring from a single location. They may be helpful to organize things together or if you plan to move the poles around on your layout.
The bus wire approach seems more natural to me since the wiring arrangement is parallel rather than serial. You just daisy-chain from one to another.
The one fastrack power outlet can do the whole job but I wouldn't recommend using track power if it can be avoided. It would be better to use another AC transformer or accessory power if you've got it.
Why are there four wires from the poles? The instruction manual shows 2.
