Hi, welcome to the forum from Louisiana, Glad you joined.
My primary concern when picking a coop/run location is drainage. If water runs to it and especially stands, do not build there. If it drains it should be OK. A wet coop/run is a big problem. If it dries out after a rain you can manage everything else.
I look at convenience to you. Where are you going to be storing their feed? Where will you get the water, a bucket of water may get heavy. You are almost certainly going to be going out there at least twice a day, maybe in the dark. Are you going to be wading through water when it is raining or trying to climb a hill if it is icy? To me drainage is much more important, but your convenience is important too.
Everything else can be managed.