I think from personal experience that the best way to find out which plan will work best for you is to try each plan for a week and then be able to compare losses and then switch them up if you are becoming bored or weight loss is slowing down.
Now I love my pasta etc, and don't particularly like tons of meat so I did green for 3 months and only lost 4lbs and that was with increasing my meat intake as you're allowed x amount of whatever as a hexb. I was getting a little annoyed as was doing it 100% and didn't really have anything to show for my effort.
So I switched to ee and have lost 2lbs in the first week, and at the moment I'm plateauing as I'm in the middle of exams and no exercise etc. I know though when exams are finished and I get back to my exercise it will work, so I'm not bothered at the moment as I know what the issue is.
I think the problem for me and the green plan was not the carbs as I'm always good with those, was the fact I was able to have an extra hex a and b which I wouldn't normally do in daily life to begin with. So I think that slowed my weight loss down as well as not eating enough super free veg.
Like I said try each plan for a week and see how you do. The best thing I have found to see where problems are and to show where good things happen is to have a diary and write down everything you have so you can see the bad weeks and figure out what the issue might be, or the good weeks where you can think of doing whatever you did that week into the next etc. You don't have to write it in the food diary sections, but if you are having problems people can help by taking a look.
Everybody has a different experience on the plans, but everyone always loses on one of the plans whatever that might be for them. So yes Sw works, you just might need to figure out what is best for your body and not anyone else.