Penny Arcade loves videogames as much as you do, they have yet to stear me wrong with one of their recommendations. All of The Escapist reviewers are pretty good as well, Susan Arendt's reviews of Fable 2 and LPB are fairly accurate in regards to my experiences with the games and Russ Pitt's review of Fallout 3 does convey a fairly accurate description of the title.
Lets not forget, Yahtzee is FAMOUS because he's caustic, not because he's affable. He's like Ebert, trust that when he says a game is good, it's good, but his personal tastes severly effect what he considers to be a bad game and he tends to rip them apart. Then again, ALL journalists are biased by their own tastes, you're best bet is to pay attention to the individual reviewer and see how close their tastes are to what you like/don't like. If both you and a reviewer have the same "Best Games Ever" superstar tagteam lineup, chances are if they call a game good, you will like it.
Also, use Metacritic, it's a good gauge.