OK, I for one have followed the 3 Hour Diet plan for 2 months now and have lost 22 lbs, there is more to it that is listed above you eat a structured meal and the intent is to get you to eat every 3 hours in order to keep your metabolism going, which corresponds to what my DR. said to do. You eat a meal of 400 calories, then a snack 3 hours later (100 to 300 calories depending on your weight) and then lunch 3 hours later, then a snack...etc......... it really does work but from what I have learned form this plan this is almost just like WW but you are more on a schedule to eat every 3 hours. There has been great success with it. As any plan, if you work the plan, the plan will work for you.
Guess its all in your preference and what you like.