I actually started a character for that. I called him McPunches or something.
Did it in the vein of Robbaz's skyrim viking video. I'd post it here but, well, you know. Man, was it hilarious.
Once you get a couple perks in the One-handed tree, dual wielding becomes massively overpowered. I'd take down dragons in a volley or two. Granted, I had some pretty boss enchantments on my swords. I think I named my dragon swords Orcrist and Glamdring, my dragon greatsword as Anduril, and my ebony blades as Twinkle and Icing Death. You're alright in my book if you get all those references.
I did the spellsword deal, but the utility of it was nice, but I preferred nuking and switching to dual wield.
Also, picking up the Spell Breaker shield really helped on tanking, especially when mage tanking.
Also, Dwarven Crossbows are pretty great for clearing areas at a distance.