I found most of the enemies quite balanced, in which I mean that there are enemies that are weak and there are enemies that are strong...
Or do anyone want that the 15 underling are as weak/strong as the boss or lieutenant. Also about the equipment complains (for the bandit-boss i.e.), equipment isn't everything, I could equip a longbow and a few leather armor parts and still one-shot a lot of bandits and defeat a dragon. And don't tell me, because I'm the hero.. the only thing that put me apart is are the shouts, which I don't necessarily need to defeat anyone.
As for my "overpowered" enemy, those friggin soul gem powered magic traps... somehow they are strong enough to one-shot me every time, regardless what gem they use and what resistance I have. Also a few of the stronger two-handed melee enemies used to give me a hard time, but that's a thing of the past, right now they count as lucky if they manage to find me before I perforate their faces with a dozen arrows.