The magic was a major step back with Oblivion, IMO, and it was modified in almost exactly the same way as Morrowind. It just needed more modification due to the horrible leveling of creatures. Oblivion needed more mods to make it playable than Morrowind, and that's a step back, IMO. Also, it was considered to be the herald of next-gen gaming since
there actually was a next-gen to work with. It was released as one of the first Xbox 360 and PS3 games, the same tech Skyrim had to work with... Were we looking for next-gen gaming on last-gen hardware?
You do realize that Battlefield 3 uses next gen tech on last-gen hardware, right? It just takes a bit of spit and polish.
By this argument many other games would be culprit as well. Take GTA4, for instance, or TF2: We've seen all the pieces of gameplay in mods and other games before.. but we didn't care, because it's the way it's put together that matters. It's more than the sum of the parts. Also, I disagree that it plays like Oblivion. It feels different. It feels less stifled and smoother and more rewarding than Oblivion ever did, save for the first time you set foot outside of the prison. It feels involved, like Morrowind did, whereas Oblivion's world quickly forgot about you.
And in my opinion Skyrim's parts weren't put together well. At all. The difference between GTA4, TF2 and Skyrim is that the former were both innovative. They incorporated a lot of things from other games, but still managed to create an unique experience. Skyrim feels generic.
And I disagree with you. Skyrim feels like a slightly streamlined Oblivion to me. The combat is much the same, as is the powermoves. The only thing that really changes is spells and dualwielding.
Seriously? Severely limiting? A) You just praised how mod-able Oblivion was, and B) go tell that to
Civ 4 and Wheel of Fortune. It's a massively versatile engine, used in all sorts of genres. The stealth system is not part of the engine, so I don't know how that connect with your gripes with it. Also, you just noted the change in AI from Morrowind to Oblivion. That's because it was completely rewritten, from scratch, to much acclaim. It was one of the major advertising points for Oblivion when it came out. AI issues that you've seen in Morrowind, are thus quite unlikely to have propagated to Oblivion and Skyrim, and are most likely your imagination.
So you dispute that in Morrowind, Oblivion and Skyrim enemies get caught on the littlest pieces of geometry and get stuck there so you can stick them full of arrows? Or even worse, if you shoot them in the face with an arrow and hide quickly after a while they say "Must be imagining things" while there's 'OMFG AN ARROW IN MY EYE'! There's some major AI issues in all three games.
Compared to Oblivion? In Oblivion no action of mine had any bearing on the world. Whatsoever. Even the story made me feel like I was watching a play, rather than taking part; not so in Skyrim and Morrowind.
In Oblivion you actually had more bearing on the world than in Skyrim. In Oblivion your actions changed the game world slightly. After the Oblivion crisis, no more Oblivion gates. A giant hole in the temple of the One. A statue erected in your honor.
What do you get after completing Skyrim's main quest? A few people clapping hands and then you return home, with everybody forgetting about you as soon as possible. For all intents and purposes, the game world is the exact same, except now you no longer have a main quest to follow. Even the dragons keep showing up.
There is also just about zero choice and consequence in the game. You get a handful of choices throughout the game which really doesn't impact the game much at all.
Oblivion wasn't much better, but this released in 2011. It's to be expected that you make a difference in a game world in this day and age. A game world shouldn't remain static throughout.
Millions of people disagree with you, if we look at the sales figures. Sure, the games have become a tad more action oriented, but Skyrim still has the core RPG system at heart, the same one I loved in Morrowind. The same one that will convince me to buy the next Fallout and Elder Scrolls game. Or almost anything else that Bethesda might develop.
Yeah, millions of people also bought Far Cry 2. Guess just because it sold well it means it's good.
Actually, you should check how many sites have been taking second looks at Skyrim now that it's been out a few months. A lot of the bigger sites have people totally panning the game for its shortcomings. Most of the

in the beginning was just because it was a new game that everyone was anticipating. Games like that only get 'real' reviews a few months after release.
Thing is, Skyrim wasn't a bad game, it just wasn't a particularly good game either. It's decidedly average, and that's a shame because both Morrowind and Oblivion were considered to be stellar games when they released. They were almost unrivaled. Skyrim, unfortunately, can be rivaled by just about any RPG released recently. Hell, Kingdoms of Amalur actually puts Skyrim to shame.