The folks at RPG Codex have put together a retrospective review of Bethesda's The Elder Scrolls IV: Oblivion, in which they primarily analyze the "streamlining" of its mechanics in comparison to earlier entries, as well as the strengths and weaknesses of its quest design. Ultimately, they arrive at a fairly negative conclusion to sum things up:
Update: It turns out we have been a little too hasty into publishing this retrospective review and didn't properly check. It was, in fact, an April Fools' joke, and as such includes jokes in both its texts and screenshots. Congratulations to the RPG Codex for the well-done joke.