I follow Taubes, Sissons and Robb Wolf approach (paleo in general) because it just works for me and I love the food. I am thinner, stronger and with much better health eating tasty food and doing minimal exercise. I think Guyenet's approach may work too (maybe there is not only one right answer) but I think low-carb is easier to me and I dont see a reason to change it. My life is much better after limiting (almost banning) grains and refined sugar.