Delegated Harvesting Node URL - selection criteria

There are many addresses in the Node Url list. Which criteria to choose one of them?
I tried a few but also after three days still “in progress”.

I always choose a node that’s near my location, at least that’s how I always did and still do with XEM nodes. But I’m not sure if it has any advantage or if one can choose any node regardless of location.
And here’s a list with nodes that you can choose from: Symbol node list
The Harv column shows how many harvesting slots are already taken.