Yahtzee, Yahtzee, Yahtzee. Not because he's infallible, but because he can be counted on to pick up on all the bad things, which I can then use to decide for myself whether I want a game. That's why I prefer a critic to a reviewer: a reviewer, when all's said and done, usually has to give a score or a recommendation, which is basically useless since there's only so much you can objectively call "good" while there's a lot you can objectively call "shit".
Case in point: even though Yahtzee loved Painkiller, his video on it let me know I didn't want it, because he still mentioned the bad AI (one of my pet peeves).