I would be more of a diplomatic leader, even for the stereotype of vikings being on raiders. I always try and work things out with words in every aspect, whether in games or in real life so that's how I would be.
I´m a mage Viking.. I make Vikings conquer territories that I want and then I make a spell to make them forget about it, this way I can live peacefully in my new territory. lol
I've always had a certain fascination for Vikings which is why I'd really appreciate this Collectors edition. I have the two previous ones but it was to expensive for my budget this time around.
And in my playthrough I think I'd take the more diplomatic route.