If I had to point out some bigger flaws in Oblivion, they would probably be the NPC conversation system, the animations and body language that the game's many, many characters use, and the high system requirements. Let's start with the conversations and NPC mannerisms. Even with fifty hours of dialogue in Oblivion, listening in on conversations gets old quickly. NPCs will go through some stiff animations while they talk, and while you'll see them exhibit facial expressions, something just seems, well, off about them. Here, it seems like quantity was focused on rather than quality, and while nothing looks hilariously bad, sometimes NPCs' actions just don't "fit together" like you might expect out of a game whose world feels so alive in other ways. Still, I have to ask myself: would we rather it be like Half-Life 2 with twenty immaculately modelled and animated characters, or instead have 1500 characters who will occasionally throw out some awkward sayings and mannerisms? There's merit in either choice, but I'm pretty sure RPG fans are going to prefer the latter.