Oh dear, I can't stand Fernet. Even though is amazingly popular in my home country, Argentina, mixed with Coca Cola, and all of my friends love it, I can't get past the fact that it tastes exactly the same as licking aluminium.
I was actually surprised to find out every bar / pub in Scandinavia seems to stock it. Alas, they would almost without exceptions serve it in shots.
On the other hand, I have to admit being a BrancaMenta fan. I know it's hideous, but try it with Sprite, it's a one-way road.