Both always come on the estimated shipping day, however, UPS always delivers my stuff around noon, whereas FedEx is always past 5pm, I even had a package arrive past 9pm once.

You are at the end of the FedEx route.

Because they have different routes, You are where you are on the route - obviously you are close to the front of the UPS route and at the end of the FedEx route

well you could always requested hold at location which is either

fedex office print center or shipping center

ususally they get packages before 10am

2n choice you could ask fedex express[overnight]priority delivery

they have to deliver it by 10;30am

different companies have different routing set ups for their drivers.