I can only speak from experience of SW, but I did it a few years ago and loved it. I stuck with green days and ate an unhealthy amount of pasta lol. I was 12st 4lb when I joined in the January and by April/May was 9st 12lb I think at my lowest. I kept it off for about a year and a half and then let it creep back up to 11st 5lb before getting my BFP. Am now nearly full term and 14st 8lb (ARGH!) so will be going back on it asap. I have a friend that has done WW for the past 2 years and has lost 8st. She looks totally amazing. xx
Just posted on the other thread too I have done burg and found slimming world much better and easier to follow!
Slimming word is great because you can loads lol - weight watchers you are restricted to how much you can eat. I did slimming world and lost a stone in 4 months