It's not about them being the same. Skyrim is a definite improvement. That said, I don't want exotic loot to be easily available at any level. I want it to be very rare all the way through the game. I got my character to lvl 15 and I am already swimming in dwemer, elven, and orcish. Soon enough will come the glass, and then the ebony. TES games have been that way all the way back to Daggerfall.
I want all of that stuff to be very rare throughout the game. Now that's me and my preferences. In Oblivion I made mods to cater to my own tastes and got a great deal of enjoyment from the game because of them. I have played enough Skyrim to understand that I will have to do the same.
As far as leveling creatures, have to see when the CK comes out. Skyrim seems to be much better than Oblivion in this regard.
That's fine with regards to
generic high end loot like Ebony, Daedric, Glass and Dragon etc. Although it was much better having only a single set of Daedric armour in Morrowind because it was the ultimate non-enchanted heavy armour. In fact, in Morrowind alone there was a missing pauldron! We didn't get the missing one until the Bloodmoon add-on was released. However, instead of being annoying this just added to the mysticism! Bethesda were inadvertently brilliant in their error!
I personally DO want the chance to come across unique weapons and armour in hard to reach remote places however. I'm sure Phitt and a few others in this thread would agree. If you played Morrowind, you might remember the unique loot in that, sometimes you just found it by chance like Eleidon's Ward, the Daedric bow and Daedric Dai-katana. Other times you had to go on some quest or make some effort to fashion these unique items like Elton Brand and Chrysamere. Either way, it was chance that you happened on them at ANY level. Getting them at any level however was
very difficult in some cases. Sometimes you had to fight an enemy(ies) way above your level, but often if you were clever enough there would be ways to beat them or slip by them with an invisibility potion/high sneak skill for example. Other times you might need a potion of levitation and a mindset to take a chance and check out that high up alcove, well out of view.
All of this amazing gameplay was missing in Oblivion, hence many peoples dis-taste for it. Instead we were presented with a god awful levelled loot system, in which the loot was more often than not, a slightly better longsword, some bonemeal and a gem or two because of the randomly generated chest contents at the end of a dungeon. In other words there was NO incentive to explore, to go out into the wild and trawl through dungeons, because the inevitable reward was crap! The only unique loot you obtained was from obvious quest lines that the game purposefully funnelled you towards! People often argue that knowing the location of the unique hand placed loot in Morrowind meant you could just go there and get it again next time round. While this was true, I argue that being forced to get the 'Ebony Blade' in Oblivion (for example) is an even worse form of this! Where's the surprise in being rewarded with this same sword everytime you repeat the same unavoidable quest? Or the same mace from Molag Bhaal etc etc...
Fortunately, some talented people modded some great weaponry into Oblivion, Arkay, Oscuro and the guy that did those 'Legends' weapon mods where you had to actually
read a book and look for clues to find these amazing weapons. You'd not get Bethesda taking a chance like that in a million years! There'd be too many (and I hate saying this but it's true) instant gratification seeking console players moaning because the weapon is too hard to find. Bethesda followed this gameplay trend in Morrowind and then suddenly we get Oblivion and it's ridiculous iteration of loot hunting!
Anyhoo, these are my thoughts and apologies for ranting at you in particular. Wanted to share my opinion though. Lastly, and to answer your question I think people are concerned that Skyrim already appears to be making the same mistakes as Oblivion, albeit nowhere near as badly.