I've read a few pieces on Taubes's diet work. To me it seems that he raises a lot of good points about how little we know about what is truly a healthy diet, and how flimsy the evidence is for a lot of recommendations that are being made to the public.
I've seen him be criticised for being too willing to promote alternative opinions on diet, but from what I've seen he normally does so with caveats, and explaining that research is needed in these areas to gain more understanding as to what is going on, but that he thinks research funding would be better spent testing alternative hypotheses than spending more and more examining assumptions which have been well researched and yet still have little evidence to support their claims.
I expect that a lot of diet stuff depends person to person. I try to eat a reasonable amount of fruit and veg, avoid too much sugar, will often choose olive oil over butter and try not to eat too much of any one thing (glutton, dairy). Other than that I just eat what I enjoy (within budgetary limitations).