As for Fettercairn, I have not tasted that many whiskies from Macduff Distillery. This distillery is owned by John Dewar & Sons. A little bit of information about why we do not see the name Macduff on a distillery bottling:
A modern distillery, Macduff (whose whisky is bottled by its owner as either Glen Deveron or The Deveron; Macduff is only used by independent bottlers) was built in 1960 to tap into the post-War whisky boom.
I am tasting a 10 YO Macduff. It was distilled in November 2006 and bottled in January 2017 at 55 ABV. Also this whisky has been given a eight months finish in Madeira Hogsheads, like the Fettercairn. The outturn was 400 bottles.
Warm and spicy on the nose. White pepper and nutmeg. Freshly cut leek and and garlic. As the Fettercairn this one turns towards fruitiness after a short while, and then woody. There is something earthy. Maybe wet leaves. Very dry on the palate. It is a bit too oaky to my taste. There are some spices, like cardamom, cinnamon and salt. They add some sweetness. The finish is very dry. I get wood, peanut shells and some fudge.
My score: nose 21 / taste 20 / finish 20 / balance 21 = 82
Image from whic.de.