The Norse will be inifinitely more playable than the Ogres and Dark Elves. Both those other teams are finess and have a play style that isn't conventional (though Dark Elves can pass and dodge... it's their lack of conventional specialists that makes them odd to play).
Norse will give you a lightly armoured team that can actually become quite defensive quickly by making some of your team Blodgers (adding Dodge to their universal Block). Just watch out for Dwarfs who you'll run into like a brick wall.
But, as always, go with the one you're jazzed by the models for.