I'm trying to help my girlfriend decide what program to credit miles to in *A. We're about to book her a flight on OZ from HKG to JFK. She lives in Hong Kong and will fly mostly to the eastern US. Our first point of concern is being able to fly relatively cheaply and getting award travel for a low price. Upgrades are less of a concern, but getting award tickets in Business isn't out of the question.

Is there one program in *A that jumps out as being miles above the others? Right now I'm just thinking to have her credit to UA because they still charge only 60k from South Asia to the US.
Thanks for your help.