I have done WW successfully in the past (lost 3 stone), and I'm going back this year (next week to be precise - 'my' meeting is Wednesday lunchtime). I've tried SW and I can't get on with it (although there's no 'counting', etc, it seemed to be based on food combining (ie - if you're eating unlimited proteins you have to drastically reduce protein and vice-versa) and I can't eat like that - too limiting for me. I like the way WW works - I just have to get back in to it!