As 5 people and you'll get 6 answers. I do rack into a carboy for a week because I can be less careful about picking up yeast from the bottom of my primary. Anything "extra" that gets picked-up settles into a thin layer at the bottom of the brite tank and nothing but beer (or very nearly) winds up in my bottling bucket. As expected, what makes it into the bottle is very clean. With my process, secondary makes the product better. Do whatever works for your process.
Personally I'd primary for longer than a week. I do 2 minumum (usually 3).