I suppose much of it is a matter of preference, in that we all do not do the same type of work, different methods may be required for different situations.
Are you doing 2D architectural or 3D mech?
Personally, always model space dimensioning.
Preferably with annotative scaling (once you get the hang of it), convenient if you need to xref the drawing.

We do mechanical drawing for several companies, some like to have it done in paper and some in model. I finding that more are going to model  except when an boarder / title-block are needed or a large number of interchangeable parts are need in assembles (just one on this). That being said we do mostly model space and allow the companies add the preferences they like.