My personal preference in finish (hand vs belt) depends on the type of grind I'm using and the aesthetic I'm looking for. On my full flat ground blades, I prefer the aesthetic of the finish marks running the length of the blade and ricasso (hand). It just looks off to my eye any other way.
If the primary bevel ends short of the spine leaving blade flats (saber grind), I prefer the finish marks of the flats and ricasso to run length wise, but the bevel finish marks to run perpendicular (belt). The contrast between the facets just looks better to my eye when done that way.
Swedges can introduce a third facet. Again, I try to choose the direction of the finish to give the best contrast between facets.
It's all about the aesthetic appeal for me, whether it's a user or a safe queen.