Appearantly Normandy is the best documented and seems to be the most heroic.
I'd like to see a ww2 game from an (oppressed) civilian's point of view, the invasion, bombing of cities, increasing fear for the gestapo, razzia's, people around you being deported. That all mixed with increasing involvement in the resistance, helping people to hide from the ss, planning weapon- and food-droppings, small assasinations, to helping allied forces with intelligence. That all leading to liberation, but from a different point of view.