I didn't play Oblivion until this year.
From your statement earlier, you think oblivion, quest wise, destroys skyrim. I somewhat agree, however there are some quests in Skyrim that blow Oblivion out of the water, such as the main quest, the thieves guild. I understand this is all subjective, but I don't understand how anyone could think Oblivions main quest was better than Skyrim.
Also, the idea that Oblivion is the better RPG. I have to disagree with this statement. What is an RPG? A role playing game. You play the role of a character, which every single elder scrolls game does. The rest, to be completely honest, is just toppings. Attributes were nice to have, but when I sit and play skyrim, I don't even notice they are gone, or miss them at all.