Well, I don't know if Skyrim spoiled you.
I felt mostly the same about Morrowind back upon release, though the scenery impressed the hell out of me for a few days.
I do prefer the interface of Morrowind, though - even if it was always kinda slow and clunky - much like the rest of the game. But it was more flexible and much more tuned to the mouse/keyboard experience.
The robot-like movement of the camera when walking around in MW makes me fall asleep, and I most definitely prefer the much more lifelike experience of exploring in Skyrim. That game feels alive - and MW feels like a painting.
I always hated the combat with a passion - and the archery/stealth is infinitely inferior to Skyrim. That's a big problem for me, because I always go for stealth and archery
Also, there's a lot of combat in the game - so bad combat becomes an issue.
I also didn't like the cardboard NPCs with that awful wikipedia style dialogue. Talking to people really did feel like surfing the web - which is not my cup of tea.
The quality of animation is a joke, frankly. It always was - but these days is looks absurd. Oblivion was a big improvement and Skyrim even more so.
Dungeons are cookie cutter jigsaw style even more so than Oblivion (which is BAD) - but at least the items are handplaced. To get that in Skyrim - you would have to use "Morrowloot" or a similar mod. That's a big one - and I always hated the random loot in both Oblivion and Skyrim (apart from the artifacts).
It was also the first cell based "streaming" engine from Bethesda - and it's really bad in terms of popup and stuttering when walking around.
There are no mounts.
The character system is dreary and boring - and it has nothing like the perks in Skyrim.
The magic system is a very subjective thing. I do like the concept of Spellcrafting - but I found the variety went largely unused for my part, but then again - I never go heavy on magic.
I prefer Skyrim's premade spells in theory, but I also have to say a lot of them aren't too exciting.
I guess magic just isn't that well done in any TES game, as far as I'm concerned.
The exploration, to me, is completely inferior in Morrowind - mostly because of how similar the dungeons feel/look and the fact that very few of them have unique story content - which is completely unlike Skyrim. That's my favorite feature of Skyrim - but I know that a lot of people STILL consider Skyrim extremely samey - and many of those think Morrowind is better. That's something that will never cease to confuse me - and I often think I must have been dreaming when I originally played Morrowind, because beyond the towns themselves, it was the very definition of repetition when it comes to exploration.
I guess I could go on, but this topic has been covered so many times by now
But, as I said, I felt more or less the same as you about Morrowind when it was released - so it wasn't Skyrim that spoiled me. But it certainly has now