Where'd you read that? Last I checked, Human Revolution was supposed to be a rather RPG-like game - although a cinematic one, which likely entails some worrying things.
Gameinformer gave Castlevania: Lord of Shadow a 9!!! A freaking nine. Any real castlevania fan would know that that is rubbish and the game is a mediocre God of War Clone at best
Pfft, next thing you'll be telling me is that Rondo of Blood isn't the best Castlevania game ever made. But I digress.
So, reviews for New Vegas? Chances are, the "smart" reviewers will give it a 9 or 8, saying it improves on the original in many good ways - but not all of them. Meanwhile, the "dumb" reviewers will just say it's Oblivion w/Guns Part II and really buggy. However, despite all this, IGN will give it a 9.