I have played 3 or 4 characters before but now I'm playing with what I consider to be my most interesting character so far. I'll try to make it short. It involves a lot of roleplaying.
Requirement: Alternate Start - Live Another Life Mod http://www.nexusmods.com/skyrim/mods/9557/?
Skills: Heavy Armor, Two Handed (Axes only), Block, Smithing. Nothing else.
Background: He is an old Orc. By using the mod I was able to start right on an Orc Stronghold just southwest of Markarth. The character's appearance is based on one of the male orc presets available. He was the leader of the clan until his oldest son tried to defeat him single combat and failed. Now he decided to leave the stronghold in search of an honorable death somewhere else while his people look for a new leadership. His skill tree is limited because he is too hard headed and doesn't care about learning anything else. The old ways have never failed him.
I play a set of rules that make the game WAY MORE interesting to me... They are all based somewhat on the Code of Malacath.
No stealing, no housebreaking, no crime. It makes the game much harder when you have to actually buy or loot your stuff.
No unnecessary killing. No killing of unarmed people. My previous characters killed everything they ran into if there was no possibility of being chased by guards. This one doesn't.
No spells. All combat must be won by fighting. Wizards are pussies. The only spell allowed is candlelight.
No use of healing potions during combat. Once the enemies don't heal it is not honorable to use subterfuges to win. Only exception goes to spellcasters. They act as cheaters in my character's view and must be dealt with accordingly.
No enchanted weapons. Looted enchanted rings and necklaces are allowed.
No stealth. All combats must be face to face. This makes me use the environment a lot in my favor (narrow corridors, elevations... anything I can use to turn the odds of combat)
Needless to say that 100 in Blacksmithing is a must for such character once the lack of enchantments must be compensated. I play on Adept difficulty but I have a mod that makes combat much harder than vanilla so it is still very challenging. Playing on Expert with my current mod setting is almost impossible.