I am currently in the process of finishing my basement and I am doing the electrical wiring of all my rooms. The work will be checked by my electrician before he connects everything to the electrical panel.
For all of my electrical outlets and other appliances, I have used a continuous circuits that have no unnecessary junction box. The junctions take place from one outlet to another, etc.
However, for my light and my heating circuits (one of each), I am considering using two single junction boxes at the center of my basement that would have 4 load romex going out to each of the rooms of my basement. That would save me from using a continuous circuit that would require hundreds of feet of cabling passing through weird places (under sheetrock ceiling, around staircases, etc.) instead of going through the middle of the main room that has dropped ceilling for easy access. Also, if I want to add lights in the future, I would be able to just add a cable to this 4x4 junction box.
I know that the use of junction box is frown upon, but since they would be under a drop ceiling (easy access), would you consider that this design is justifiable?
Also, I know having a single light circuit is not ideal, but that would power a few low wattage LED and won't utilize 10% of this 15 amp circuit. Again, having a center junction box could enable the addition of another 15 amp circuit load line, but I highly doubt this would be required.