If your budget is restricted to the $100 mark then i suppose the Asus one is the best. Otherwise, there are 890FX boards which are a lot better.http://www.newegg.com/Product/Product.aspx?Item=N82E16813131655
I am not in US so cant comment on the Open Box one's. I have no idea what they mean. But if it was me, i would always prefer a boxed one.