It's a terrible game. The story is clichéd and predictable, the characters all look and sound the same, there are far too many items which all do the same thing, combat is overly simplistic, you'll never have to see or use half of the stuff in the game, you can do whatever you want, no matter how much it ruins continuity, and yes, Cyrodiil is huge, but most of it is empty space with blurry grass and blurry trees.

And yet, though I have no idea WHY, I love Oblivion

I forgot the voice acting, really what was the thought process there,

Bethesda worker #1 "Ok we got Patrick Stewert to be a voice actor for our new game"

Bethesda worker #2 "great so we kill him off in the first 10 minutes of the game and then have 3 people do the rest of the voices in the game"

Bethesda worker #1 "Brilliant Idea!"

Bethesda worker #2 "Isn't it?"