I can't say that I have a total view off every game he's played, but so far I can say that the one game that I didn't like that he did (please don't flame me for this), but Fallout 3. I respect the person that can play it, but it's just not my cup of tea, was confusing for me, and I would eventually figure out but I figured that if it might take me more than a week to figure out some of the parts, then I'm just not into it.
I will admit that I will pick up Overlord 2 to try and continue it, but I could tell that the best part was the beginning, and I have been dreading to actually play the game due to it being horrible..thus I will purchase it dirt-cheap, just to say I have it. (and it's really because I'm a fan of Overlord 1, which was fun, in an interesting sort of way)
Also, I like some Japanese RPGs, I understand why Yahtzee doesn't like them, especially since he told the interviewer why he hates them. But I understand the concept of some of the RPGs and will still play them (though, I will admit, looking through the list, Yahtzee doesn't touch any of the Japanese RPGs that I like.)
And he is a critic, which that's what they are here for, to nitpick every bits and pieces, and despite his hatred for them, take note that he doesn't actually tell you not to play, unless it's a game that's so horrible that he states that. (Jericho being the one that I remember that he didn't want to recommend it, the two he hinted at was the Conduit and Too Human). So if you can tolerate his nitpicks, then it's good.