I think that sedans look a little more grown-up/serious. So in some moods, a sedan would be preferable.
I'm also pretty sure you have a wider field of view when the back window is closer to you, so that's an advantage of sedans.
But in some senses, "hatches," as a way to access your cargo space, completely prevail in America (well new england at least). Go to any parking lot, and between the hatchbacks, wagons, SUVs, and Minivans, Sedans are far outnumbered.