It really depends on the application for me. Paracord is great stuff when considering shock load, resistance to rotting, and relative size. It is not the best for holding a knot, and will deteriorate in sunlight quicker than natural fiber ropes do.

In a campsite, I generally prefer manila or sisal. It is easy to knot off quickly, doesn't get too slick when wet, and is environmentally friendly so I don't have to worry about leaving trimmings on the ground or throwing scrap into the fire.

When I am on the water, I always prefer polyprop. It is the only one that floats.

From a survival supply perspective, I think paracord is the best utility line you can stow, except maybe dacron line, which is SIGNIFICANTLY stronger for similar weight/diameter. I will tote some of both, with a great deal more yardage of the dacron in the 120-200 lb strength.