I ran the parcel line for a good while at my former job. The parcel line was where stuff was shipped out via FedEx, UPS, FedEx Priority, and via air. Most of the drivers said the same things Mak said.
I also got to deal with returns from said carriers, mostly where a package was placed on the wrong pallet. I can tell you, based on the Chattanooga terminals, that FedEx's returns came back exactly how they left with a label added as to why it came back. The FedEx returns also came back within a day or two. The UPS returns, however, took three days to a week and looked like it had been through a war, used as a football for an entire season, and drug behind the delivery truck... beaten, battered, crushed, torn, and filthy. Fully 75% of the UPS returns had to be written off and repicked due to damage and missing items (which fell through the gaping holes made in the boxes.
I also got to deal with returns from said carriers, mostly where a package was placed on the wrong pallet. I can tell you, based on the Chattanooga terminals, that FedEx's returns came back exactly how they left with a label added as to why it came back. The FedEx returns also came back within a day or two. The UPS returns, however, took three days to a week and looked like it had been through a war, used as a football for an entire season, and drug behind the delivery truck... beaten, battered, crushed, torn, and filthy. Fully 75% of the UPS returns had to be written off and repicked due to damage and missing items (which fell through the gaping holes made in the boxes.