With my bow, enchanting and smithing all at the top with my destruction damn near the top, i've become bored of Skyrim. I suppose i can just up the difficulty though.
Still though, on normal my breton character, Corvo, is way too strong.
Bumping the difficulty up a few levels will certainly make the game interesting again. Expect more encounters with dragons, higher level enemies, and enemies that are more combat proficient.