I'll lay you odds FedEx and UPS will stick to Bowing. The 747 designs are much more accomodating than the A380 simply because so few airports can handle the things.

I've ridden Boeing, McDonald Douglas, Lockheed and Airbus passenger planes. Only the Airbus felt like a hinky-shit Cessna with delusious of grandeur. I'd rather fly flippin' Aeroflot before doing another Airbusted.