To Be honest I have never flown on UAL mainline metal, but I can say the ground staff for CX at ORD was wonderful and thei inflight service was top notch as well. Keep in mind UAL uses a non ER 747-400 on the route and at times the aircraft might take a weight penalty due to the length of the flight. UAL also has seniority on thi sroute so for the time being their loads might be heavier than CX.

Regards,

Chepos