I've had so much trouble with Fedex and their lazy, lying drivers over the years. Several times they have either left a slip downstairs saying I wasn't home (when in fact I was, monitoring the delivery on my app), or claiming the item had been delivered when, in fact, it hadn't (I was also home at these times). Each time, I immediately called Fedex who told me the driver attempted to deliver the package, and each time I told the representative that the driver was either lazy or lying because I was home and would like the item delivered, TODAY). In most cases the driver came back, but in a few, I had to wait another day or two. I've NEVER had trouble with UPS; their drivers are always friendly and courteous (unlike the Fedex drivers), and I ALWAYS request UPS over Fedex when given the option (I've advised many others to do the same).
When I mentioned my Fedex experiences to the UPS driver, he smiled and said he'd heard many stories like that from customers. Yeah, you can say he had a vested interest in agreeing with me, but I've had so many bad experiences with Fedex that I'm sure others have as well.