UA would need to be a lot higher than 1.5X for me to step foot onto their planes. Especially on a longhaul like exUSA-HKG.
Anyways, you might want to ask the Mod to move this thread to the
Credit Card Programs forum where you will get better/more replies as a good portion of this forum's viewer is from HK and we already have an extensive thread covering
http://www.flyertalk.com/forum/catha...amiles-hk.html