Usually I see composite as a laminate wrapped around the core of a sandwich structure. Usually in loading such as bending the bending stress is the highest furthest away from the neutral axis, while usually the maximum transverse shear appears at the outer surface of a structure. I believe this is why laminate is orientated differently as it's orthotropic + wrapped around the outer surface of the structure.
I've also seen people making sandwich core e.g. 2d extruded lattice, by using composite. I suppose they are the same as the conventional laminate in terms of manufacturing and material properties (layers of lamina), the only difference is probably that in order to take the shape of a 2d extruded lattice, it's cut from layers of rectangular lamina? Why would people do this though, are they better than traditional material? Is it because people make them quasi-isotropic?