With a mage or melee character, it was pretty trivial. Aside from the one scripted attack outside Whiterun, which was pretty easy (involved chugging a lot of 'healing' potions to survive his attacks while the various guards with me helped kill it), I've not managed to end one, yet. I can't figure out how to kill the buggers. All my skill is in Sneak (up to around 60 or so at level 13 or 14, IIRC) and Archery. My one-handed weapon attacks aren't.awful.
good gods killing a dragon is hard with this kind of character.
I guess I liked Deus Ex: HR a lot, so the sneaking around.hiding behind rocks after sniping an enemy at range almost holding my breath to see if they find me.is turning out to be exactly what I wanted. So I finally gave up trying to play a combat character in the game (WAY too boring), or a mage character (WAY too powerful), and went with a thief.