To wear or not to wear (the same dresses)

[bjmy1975]

We are having 3 bridesmaids, 2 junior bridesmaids, and 2 hostesses (translates female usher... but i don't like that title). We have picked a nice dress that comes in adult and junior sizes for the bridesmaids. Should the hostesses wear the same dresses? Or should the have something complemntary and different since they aren't as high up in the food chain?