They have really done a great job with scaling in Skyrim. This was one of my major concerns about the game, Im so happy to see that it turned out great
I have been owned by Wispmothers, been mauled by falmers and I have gotten my skull crushed in by cave bears many times. I love how I until lvl 12-13 had to stay clear off spriggans aswell
and the dragons, well they are not to hard, but I havent been in battle with the real badguys of them yet
But I have killed 6 dragons so far. So yeah, thanks again bethesda, I love this game biiig time !!!!ps I don't think there are spoliers in my post? If so can a moderator please move it to the spoiler forum?

