At the end of the day, if you plan to have meat as a healthy extra it doesn't really make a lot of difference except that the Green will limit the portion slightly, so it depends on whether you think that helps you. If you feel that you will still be full and not have to load up too much on carbs or anything to compensate (which slows some people's losses), Green is fine. On Green I would recommend you still have one of the healthy extra B choices as fibre, as it is important to keep things moving, but that isn't a rule. You will have an optional second healthy extra A choice of extra milk/cheese as well, but you don't have to have it.
Different people find different plans suit them better - some do say they lose a bit slower on Green as they eat more in carbs due to fewer obvious protein sources. The recommendations from SW now are that you use the 1/3 superfree rule on Red and Green as well as EE though, so that might help prevent this problem in the future.