Originally Posted by
anabolism
BA allows stop-offs on awards, while AA doesn't. I always use AA miles because BA requires so many Avios and so much cash, but I'm always annoyed that I have to do super-long trips without an overnight if the schedule doesn't permit a <24 overnight.
I'm afraid I don't understand. If you are booking JFKHKG AND HKGSIN, no matter how much time you spend in HKG you have to pay extra Avios points for the HKGSIN leg. But no extra AA miles are collected for the second segment as long as the connection doesn't exceed 24 hrs.