I have been selling and trading over the net since the days of rec.radio.swap. In the beginning when UPS actually had company owned service centers for consumers, I used them exclusively. Then they closed them, had the strike back in 1997, and their service started sucking. Today I despise them, their drivers are lazy union employees who deliver packages whenever they feel like it. Despite the fact that packages are sent insured for over 1,500 US and signature required, they left a brand new VXR-7000 sitting outside the house in the rain. time after time, anything sent UPS is always delayed. I don't live in a remote area, I'm 7 miles from downtown Atlanta, and about the same from one of their many hubs. They suck and I loathe them.
USPS I've had mixed results from, I'd say 90 percent of packages sent Priority Mail get here or there within 3-4 days. Some have taken 2 weeks, including one sent from St. Mary's Ga (south Ga) but it got here. But they have lost a couple of packages and their tracking is a BAD JOKE. Delivery confirmation is worthless, and as far as Paypal is concerned, won't cover you if a package is lost as it won't count as proof of shipment.
I've been using FedEX for over 3 years now. They've never lost a package, their tracking is top notch, and I can get a scanned PDF online of a signature, trust me if you take Paypal and do Ebaying this will COVER YOUR BEHIND. Their deliveries are always on time. The biggest advantage with FedEx is being able to go to an actual COMPANY OWNED service center, which they have many in Atlanta. I can deal with corporate FACE-TO-FACE, which speaks volumes about a company. They also stay open to 8:30.
Amateur radio gets right through.