I did Slimming World 6 years ago when only the green and original days existed. Both worked and I lost the weight I needed for my wedding but I didn't go back.
I rejoined in September last year and was amazed by the Extra Easy plan. I couldn't believe that it would actually work but it really does!
I would definitely recommend the Extra Easy plan because you don't really have to think about it. The key is to make sure that a third of your plate is superfree food (most vegetables and pretty much all fresh fruit fall into this category). Mushrooms are superfree which is great.
My favourite meal is steak, syn-free chips (google the recipe it is a life-saver), mushrooms and tomatoes fried in Fry Light.
Here are a few other meal ideas:
Chicken breast wrapped in bacon (remove the fat first), peppers, new potatoes, onions and carrots all roasted in Fry Light. Add a squeeze of Primula light on the chicken as a sort of cheese sauce (a whole tube is 12 syns so a bit of a squeeze will not be many - it's best to weigh though)
A fry(light) up: Bacon (remove the fat), sausages (quorn are syn-free, Tesco healthy are 1 each, Morrisons eat smart are 1/2 each), tinned tomatoes, mushrooms, beans, sliced potato (boiled and then fried)
Lasagne - use extra lean mince and add loads of veg like courgettes, peppers, tomatoes, anything really!
Stew - beef, carrots, potatoes, onions, stock cube, water - chuck it in a slow cooker in the morning and come home to instant dinner!
The SW website and magazines have LOADS of ideas and recipes. The magazine is definitely worth buying for the inspirational stories.
If I think of anything else I'll post again.
Good luck
x