The way I see this is every one is right first of all there is Prefaces if it works for you then go for it.
As far as North Up it does force you to think more in some situations at least it does for me hence the way the Brain works and process information and People are Different in that category.
And for Track up for me it’s a thing of Situation Awareness be it Flying or Driving especially with a map view while you are following your track the map is oriented to the direction you are traveling so just a glance will tell you that the lake or road on the right is where it should be with no further thought process your Brain has to make. Hence Safety and work load in this mode while Driving or Flying for me is the answer
Now as far as myself I use both it depends on what I’m doing and if it depends on (NEWS) such as if your at a waypoint or point of interest and need to go south then the orientation is already set up for you with North UP.
