There are plenty of bloggers that 'review/rate' games. A popular franchise has recently just returned that are pretty well known for their well written reviews.
And that place is EGM. I always read what EGM has to say about the latest games coming out. Also, there's really no place to rent games anymore, except for GameFly and such sites like it.
You can still go to GameSpot/IGN, but don't look at the website review scores, pay attention to the 'user scores', and take a look at some of the 'user reviews'. Some of them are written quite well, and some of them are crap. So you kinda can get a little guess of if you will like the game or not.
I mean, even IF you read a review/see a rating, you'd rent the game to see if you like it anyway, since a review/rate is based on someone else's opinions. They're meant to be taken with a grain of salt to begin with.
Bookmarks