Thx, RTW. You will have a couple of FT'rs there about a week before you.
One thing to consider about the award ticket is what class of service it is being bought in. Going AA-BA, you can go in first class the whole way. Going CX, you can't because CX is business class only between HKG-DXB. If you are going coach or biz, I would use CX. If first, then aa-ba.