Cell arrays are complicated and confusing. I think a structure or structure array is a lot simpler, intuitive, and more straightforward if you have a mixture of related data of different types. It's a good choice to hold a variety of data.
If all your data have the same number of elements, though they may be of different types, then a table would be good and may have some advantages over a structure for doing certain types of bulk operations.
If you want certain functions to be associated with your data, then you can build a class, but if all you have is just data and just need a way to store them, then you wouldn't need a class.
