And my idea is to make a daughter of a Witch and a Nord Warrior.
That means that this lady could be a hybrid of a witch and a warrior.
Now how that would work out, no clue. (Help with ideas?

I think I will go for two-handed, and without a doubt heavy armor. (Because I fell in love with the Nordic Carved Armor.)
I assume that destruction would be very typical for a witch, but since I want my character to go two-handed, it would not really do much. So I was thinking about conjuration instead, the lovely ability to summon demons is pretty great. I guess this would make my character a bit of a ''dark lord'' kind of character. I already imagine my own group of enslaved daedra and her greatsword slaughtering all who go against her will! (Well, not really. This lady will have good morals. But you know what I mean.)
So, to keep it short:
Heavy armor
Most likely two-handed.
Conjuration
Smithing (Because a Norse man would be proud if her half-witch made her own tools.)
Illusion (?)
Alchemy (?)
Oh, and with the coming of Dawnguard for ps3, Vampirism will be a thought aswell.