I would be sure who makes the rope rode. The big manufactures are New England Rope, Sampson Rope and Yale Cordage. Go to each manufacture's web sites and read about the different ropes before you order. There are many characteristics which make one rope better than another. It affects the way the rope "lays", without kinks and hockles, will it continue to be supple or will it become stiff and very difficult to handle. How well will it lay in the anchor locker?
Yes, you can buy much cheaper chinese rope, but in the long run the difficulty it may give you is not worth the few dollars savings. Anchor gear is very important safety gear.
Agree: buy US chain. Galvanizing is far better. 1/4" strength is plenty, but I prefer High Test.