I don't know much about book critics, but from what little I've seen I've noticed they tend to mostly review the "big" releases, from authors that already have made a name for themselves. But seeing as how a lot more books are made every year than movies or video games, it makes sense that they would have to limit their scope a bit.
If you are looking for a source of book recommendations, I suggest looking for an online book club or forum for enthusiasts. Something like The Escapist, only for books. Those people will know of a broader range of books, can give you more specific recommendations, and will tell you about the book as a reader rather than as a critic. Plus you can talk to them directly, getting the information you want rather than what the critic spoon-feeds you.