I have used DHL: received a vintage guitar broken, took over a month to get the claim.
UPS: Driver delivered it off at the wrong house, but I still use them because it is easy to get a claim and the driver knows where to leave the packages so I don’t have to go to UPS to pick it up.
USPS: Have had a couple of windstones broken in mail, but I returned the item to the seller and the seller gave me my money back.
Fedex: I haven’t used them for Windstones, but for letters and stuff they have fast shipping except they leave my stuff in plain sight where it can get stolen.