The only package I ever had delivered with the contents busted to smithereens, was via UPS. Always receive items in good condition from USPS.
I did get a bowl I bought on ebay delivered broken once. It was poorly packaged by the seller, in my opinion, but it had been insured and so the USPS took it and gave me the amount of the insurance (the amount I had paid for the bowl) plus the shipping cost. I was disappointed but was out nothing, so I was satisfied. It was a fragile piece, poorly packed.