Morrowind also had no shortage of "unique" items that were actually just generic looking items with a unique name and unique enchantments, fortunately, though, there were also a fair amount of items worthy of the name "unique" in the form of artifacts. Now Fallout 3, on the other hand, was a very bad offender, lots of supposedly "unique" weapons that looked identicle to normal ones, their states might be unique, but aesthetically speaking, they looked just like their generic counterparts. Nothing ruins the satisfaction of finding a powerful unique artifact quite as much as realizing that visually speaking, there's nothing distinguishing it from a completely mundane item, so Skyrim certainly needs to have a lot of properly unique unique items. Ideally, every item that is supposedly unique should AT THE VERY LEAST have a different texture from its generic counterpart, which is what most of the unique items acquired through quests in Oblivion were like, preferably, though, it should have an entirely unique model as well.
What I'd like to see return from Morrowind though is the ability to find unique items in dungeons, in Oblivion, aside from a very small amount of exceptions, all unique items were only available as quest rewards, and while it's certainly nice to complete a quest and be rewarded for my efforts with something I couldn't possibly find anywhere else, I don't want all unique items to be acquired this way, I want to be able to walk into some remote cave, and find a unique artifact hidden within.
While there were some good ones, most of them were just normal weapons only stronger.
Unfortunately, I think that's mainly an inevitable concequnce of the enchantment system used in past games, since enchantments needed to be able to be boiled down to some generic effects used by different kinds of enchantments and also by spells. Oblivion was actually slightly better on this as it included a few artifacts with unique affects not used by any other item, unfortunately, these items were usually just gimmick items that had limited practical use.
I actually enjoyed TES4 mostly because of SI expansion.
Never was crazy about Oblivion itself.
SI is a game saver in TES4 case if you ask me.
That doesn't make any sense, how could one expansion make you enjoy a game much larger than it? And why even bother sticking around for the expansion if you didn't like the game to begin with? If I played a game I didn't like, believe me, I wouldn't waste time on its expansion.
For that matter, what does that have to do with the subject here at all?