You seem to be forgetting MW. Which had the best level scaling of all, very little. There were not a thousand variants of the same creature, such as in Skyrim, which seems to have ten different types of draugr, ten different types of dragon, and three different types of bears.
Also the Skyrim system is just as bad as Oblivion. I did a dungeon at level 5, was easy as heck.
On a different character, I went to the same dungeon, but this time at level 40, and it was damn near impossible.
And another gripe I have with this is that enemies attack and health scale with the player, not just creature variant.
A draugr deathlord I fought at level 20, and could deal 50% of my health in one slash, should not deal the same damage when I'm level 40. It just doesnt make sense.