I played 2 characters that really stood out to me. One was a female imperial monk-wizard. She focused on hand-to-hand, unarmored combat (with cloth bracers to get around the bug) and had destruction and restoration to buff and debuff. The goal was to create a character that required the least amount of gear to be effective, but ended up relying too much on magic for my tastes.
The other was a male dunmer bookworm that played with the "just pretend to be Nerevar reborn" idea. The character relied on enchantments and persuasion to give the illusion of being a badass warrior and master strategist. This was my favorite character, because it became ironically self-fulfilling. Since I had no real combat skills, I had to plan my fights carefully and make the most out of my small victories. Thus, I overcame astounding odds and became a great leader, if only as a figurehead.
I'd like to make a character that uses conjuration and restoration to summon and buff an army of minions. If anyone has had experience with offensive summons, let me know how it worked out and what advice you have to give.