To me games like the Elder Scrolls and Fallout series are all about immersion, and I think Skyrim achieves that probably better than any of its predecessors. When you play Oblivion you plan out exactly which skills to chose for major skills so you can max out what you want to use in the game without leveling up, thereby obtaining your optimal character, or at least that's how most of the hardcore Oblivion players do it. Then you do dumb things like auto run into walls, auto sneak into walls, and find a low ceiling to jump into over and over and over and over and over and over etc. There is nothing realistic about that, and its kind of hard for me to feel like I prepare for traveling to Oblivion to fight godly daedra by jumping up and down like an idiot. Also I'm not sure why all these people are disappointed, Beth made no secret about how drastically the leveling system was going to change from Oblivion. During Skyrim's development if you watched any of the developer interviews or previews they continuously said that this game would be about leveling up by doing, the way it should be, and they've achieved that much better than I thought possible. If you want to be a warrior, you go out into the world and start hitting stuff, if you wanna be a thief start looting left and right. Oblivion often punished you for leveling, as often if you didn't plan out your character meticulously your level would often outpace your dependent skills and leave you fighting creatures too hard. And while certainly Oblivion was harder it wasn't interestingly harder like Dark Souls. It seemed like as creatures leveled up they just gained more HP, not really becoming any stronger or dynamic at all, but just annoying bags of hit points.