I've always liked the idea of a Mage Assassin. Creep up behind someone while cloaked in invisibility, and slit their throat. Then raise their corpse to do your bidding. I mean there are many possibilities for a mage assassin. If you are caught killing somebody (Like in the DB Solitude quest), use illusion magic to calm everyone down.

Make a Pelinal character. That would be so awesome.

Sneaky sneak type is always fun, buut if forced to an open combat, pulls a big heavy warhammer.

I am having a blast playing an archer type with hi sneaking abilities but who doesnt wear armor, and when he engages in melee I double cast fire spells with knockback perks and for crowd control...realy awesome stuff