Hiya, I have done both, Im currently with weight watchers, after years of on & off doing slimming world. they are both good and both have lots of good points, the thing I like most about weight watchers is that I actually am learning about portion control and I find that my weight watchers leader sends me either a text, email of sometimes a little note through the post to keep me motivated, I didnt get that much support from slimming world. also with weight watchers if you do it through monthly direct debit (£19.99), you get access to all areas of the website which is a fantastic tool to aid your journey, with the online calculators and food trackers etc... Obviously its personal choice. and from someone who always recommended slimming world before I can honestly say that Ive learned more from weight watchers about eating habits than i did with 'all you can eat slimming world', for a foodie the thing i needed help with and getting to grips with is my relationship with food and its not just the quality of the fuel your putting in your body but actually the quantity , this is just my personal experience and im not by any means knocking slimming world as ive said before it does work but for me weight watchers is making more sense to me right now. good luck with your choice xx