We crossed once to Argentia (long route). In those days the trip was 17 hours - said never again. The seas were very rough and most people were ill.
We prefer to take the shorter route. Going East we explore some of the penninsulas and coming back West, we do things we missed going East. This works out great for us - we take our time - camping cost is not a big issue and the fuel costs are cheaper than the extra cost of a ferry/berth/meals.
Hoping to make our 4th trip to NF next year.