In Oblivion when i walked into a house or even a ruin, i had a warm, joyful feeling rush over me. Maybe it was the art style. It wasn't just that it felt warm or cosy, but it felt inviting. Skyrim is extremely gritty and realistic. Exploring every inch of the world was a passive thought that you didn't think twice about. I played oblivion for half the time i have skyrim, yet i remember all the wonderful quests. The ice mage that ambushed you on the side of the road. The heavy ring in the well you had to return. The dream quest. Why were they great? I don't know, there was nothing spectacular. Maybe nostalgia is just getting the better of me. Roleplaying seemed to come much easier to me in Oblivion.
Though in Skyrim, i always feel.. out of place. Cold. Stale. I have to force myself to look around for loot or explore houses. Not that it isn't fun, because it is. I remember when Skyrim was first released, after playing for about an hour i went to get something to eat. When i returned.. i thought, meh ill go to bed. Woke up, i had no desire to play other than the excitement of another elder scrolls. I just remember thinking back in Oblivion i would spend hours just looking through houses, walking through the mage guild grounds, but don't get that so much in Skyrim.
I guess what i'm saying is, i've played Skyrim for over 400 hours yet spent half that in Oblivion, and i have so many memories. I guess not much stands out in Skyrim.