It is a different set of decision criteria between a cable type to connect to a PowerPort vs a cable to connect to a Powercore.
Cables lose energy relative to quality and cable length, so there are two main approaches to this:
When you are connecting to a battery, it has stored energy which would become wasted if used with a long cable so you’d tend to pair with short USB cables of good quality.
For the Powerport 5 as it is mains powered you can afford to be wasteful with long cables, as via Anker VoltageBoost it will force up the voltage to make up for the losses in the longer wires, BUT it only as so much Ampage capability of 40W in total so if you were to have lots of long cables going to high-power devices (recharging USB batteries, and powering tablets, etc) then you could run out of Ampage from the Powerport5 overall.
I would advise therefore you go with placing the Powerport5 as near to where your devices will be and getting just long enough cables, that would usually involve say 1 1ft, say 4 3ft and say 1 6ft, and place items like USB battery on the 1ft, nearby devices on the 3ft and the device which needs to be furthest on the 6ft.
IF you’re thinking all cables being long, then consider using a higher Ampage Powerport like the Poweport 6 which as 12A of output rather than the Powerport 5 which has 8A output. At home the large size should be less of a problem.
In the living room the usual cause of cable wear of bending them up in a bag doesnt happen so I dont think you need the braided higher cost types they are more travel situations, I’d use just Powerline not the Powerline+ cables.
For travel situations go with Powerline+, as for if you’re using USB batteries, but go for the shortest cables you need.