Hey FJordy.. welcome aboard!!
Hope you don't mind I moved this to Splitboard gear section.. It's a really good question actually!!
The brand I don;t think makes a huge difference, but I am very partial to G3's as I have used them for several years. No matter WHAT you decide to get, make sure you have tail clips on them, although I am not sure how to set that up on a swallow honestly.
Tail clips are imperative on any skins. It will make the difference between having a pain-in-the-ass-day or a sick day of riding!!
As for the decision fo type of fiber.. I personally don;t see a huge difference. I think the G3's are great as they dry pretty fast too. I have not used mohair before (one of the skiers on here may have more insite on that).
Also, PM me with your address and I'll sedn ya out a sticker!!