It's not that I hated Oblivion, it's more that I was very easily bored of it. I could understand why people loved it when it came out, and it's not a terrible game, but after a while, I couldn't finish it because it felt rather repetitive.
Firstly, I got screwed over by the leveling system. If you don't level right, you're fucked. Hell, you can't just focus on a single type of character. I went through so many character redesigns that the first few quests made want to blow my goddamn brains out. I finally decided that I'll just be a straight up warrior that focuses with just a sword and shield. And for a while, that worked. That is until I encountered enemies that were immune to non magical damage. And having absolutely no skill in magic, I was fucked. I couldn't just focus on one type of character. It seemed like every choice I made was the wrong choice and the game just got unreasonably harder and harder.
After toning down the difficulty slider by a few notches [small](which is very humiliating, by the way)[/small], I started to enjoy the game a little bit more. But after a while, I could see a small problem... well, actually, it's a big problem. It was very repetitive and boring. Everywhere I went, it felt like the same Ayleid ruin, the same fort, the same cave, same goddamn country side. Hell, none of the quests felt really engaging or memorable, and I went through the whole Arena, Fighters, and Mages Guild quests. Nothing.
Skyrim? I'm not having any of those problems. The world feels varied [small](ex: I always expect to see something I've seen before, until I see a goddamn forest in a draugr cave and go HOLY SHIT)[/small] and the enemies level with you at a reasonable pace. Plus, leveling is easy and it doesn't feel like there's any wrong answers to play style.
BUT! [small](tee hee, butt...)[/small] I realize that the same feelings could have been said for Oblivion upon release. Maybe the fact that it's new has me giving it much more praise than I should. I have a feeling that in a few years time, I'll look back on Skyrim and have the same criticisms for Skyrim.
So yeah, I'm not a huge Oblivion fan and I'm really liking Skyrim, but I'm aware of why people like(d) Oblivion and that Skyrim won't age too well.