Personally I use one size for everything. When equipment is interchangeable, it makes it much easier to shift things around if a colony needs help.
I see from your later posts that you are talking about cell sizes. I have no experience with anything but standard cell sizes. All of the cell sizes within all my hives are the same size. From your original post I thought you were asking about the sizes of the foundation sheets themselves, so I mentioned that I use all deeps-- foundation, frames, and boxes-- so that everything is interchangeable.If the foundation is different i should not swap them between hives (if needed), correct? Is it because the bee's won't draw on different foundation?