I honestly couldn't compare Moonsorrow to Falkenbach. If you're talking simply about the overall palette, where one band just has more elements that appeal to the person in question, that's one thing. But they're quite different bands, even if both are folk/black.
Been on a big Falkenbach binge recently, one of the earlier bands I got into, back in the day, and still one of the favourites. No one seems to pay attention to them anymore, which is a shame