Daelon DuLac
How do you backstab a Dragon?
What is it with you and Bretons? What, you like short dumpy and magic resistant?The easiest build to feel powerful with is probably a Breton running Two-Handed (greatswords), Heavy Armor, Archery, Smithing, Enchanting, and Restoration. You're equipped to face virtually any threat, including those pesky high-level mages.
But in reality, play what you feel comfortable with. I don't use a build like that because I find it boring when you're too OP. A little challenge goes a long way for me.