The biggest 747-8I customer is Lufthansa, but they also operate A380s. I'm sure there must be a good reason, but does anyone know why they chose to do this?
AFAIK it's a range and, possibly, also a cargo capacity issue. There must be a reason why they fly FRA-LAX with an A380 in the morning and a B747-8I around lunchtime (that's times ex FRA).