Hi Thalys!

I will use BA EC (have their handbook now, thanks to Dave) as it seems very simple to get and to keep Gold with them if you fly in F.
I will keep LH SEN, no question. If you live in Germany, it is impossible to live without LH, also the Star program is quite good.

I found a lack of ONE WORLD presence in mainland China. Very hard to get there. Only from OZ or LHR. On an RTW with Star, I can fly i.e. from Singapore to about 6 destinations in mainland China. Unfortunately Dragonair is not part of OW, what a pity.