1066: Who had the best claim?

Harold Godwinson, along with Duke William of Normandy and Harald Hardrada, all wanted to be the next king of England, after King Edward fell sick. They all had a huge claim to the throne, but for me, the one who deserved it the most, or had the strongest claim, was Harold Godwinson. King Edward had chosen him to be the next ruler. Reasons of why he did this, were that Harold was a noble, with a powerful army, and also that he was the only English man running up for the throne; Duke Will and Harald were foreigners, and had nothing to do with England. Also, Harold and Edward, both had a strong bond or connection, since King Edward had married Harold's sister. But even with all this, it wasn't enough to make him the King of England.