I have no direct preference for one or the other, although simple is always good.
But it would be a good thing to have a standard for structuring plugin / skin repo's, and a standard for the corresponding recipe. Not only for us image builders, but also for (would-be) plugin makers. If only to stop them from manually making borked ipk's.
If we can come up with one, existing plugin or skin repo's can be restructured, which will make things easier for everyone.