Originally Posted by
FriendlySkies
Some people do not like the old AA business seats, as they are not 180º lie-flat, though they're more than comfortable for a long flight to PVG. I flew to PEK twice in April 2012, and slept more than eight hours, each way. The slight slant to the seats did not bother me one bit.
Catering has improved recently, and if presented with a choice, I would likely go with AA, especially if you wanted to earn some miles towards your elite status.
The only reason I would go with UA or DL is if I was earning miles with them.
The seats do go 180 degrees flat, just not horizontal. Although that's not my preferred position for sleep; I prefer somewhere in between position 2 and position zzz.