Well, since I have to go to China in April, my travel plans just became a no-brainer--AC/SQ RTW with a HKG-CTU-HKG side trip tacked on.
It is cheaper than a *A RTW, and has no minimum stay requirement.
However, with no backtracking I cannot do LHR-YUL-NYC, so I will have to suffer accross the atlantic with SQ from FRA or AMS.
Ah, the lengths I have to go to