Jim Sterling's pretty good, Yahtzee's a very intelligent and perceptive critic buried under piles of gimmick.
I think Jim's consumer advocacy videos and thinkpieces are incredibly valuable and far too rare in this industry, but his critiques and actual opinions on games do incredibly little for me- not in a Brad-style "I fundamentally disagree with this person, but his critique offers an interesting perspective to me", but in a "I don't really get any value out of this guy's opinion" kind of way.
Yahtzee's incision and critique is buried much too deep under his constant full-throated cynicism to be as effective as it can be. Few out there are remotely as good as tearing something apart that really needs it, but that's totally blunted by him treating every single game that he reviews in the same way. Unless he radically altered his style, he'd be utterly insufferable in an ongoing podcast.