It totally depends on what your house looks like from the outside. I think it's really important for a door to compliment the structure of the house. In other words, if you've got a flatter, stucco exterior, you might want to add some texture with a more interesting door. If you've got this really elegant, ornamental exterior, choosing something smoother and flatter may look best. It's all about adding a bit of texture while still matching the overall vibe of the building.