Having been dual qualified almost from year one, I have to say that I prefer helicoptering, but it's more down to the work that you do, plus the type of machine. You can do lots of things in a Beaver/Otter that you would never do in a 747 so the same arguments that apply to a helicopter could also apply. Landing a Beaver in crossed headlights at night in a large black hole is just as challenging! Finding it in the first place equally so!
I think the comparison could also be airline/corporate flying vs utility. I would much rather fly a Beaver in the mountains than a helicopter on an airline-type schedule.
Phil