Hi,
I think you will only get good reviews about SW on this forum! I will sing it's praises until the cows come home, it is wonderful, easy, flexible, you can never run out of food points etc etc
I don't know how weight losses compare with WW and I wouldn't say WW doesn't work, because it clearly does (you only have to look on the WW forum!) but you will find a steady loss of 1 to 2 pounds a week on SW once the initial bigger losses have settled down. I think this compares with WW. Obviously if you have more to lose, you may lose more each week. Everyone is different but bear in mind, one to two pounds a week is healthy.
As for EE, there have been some fantastic losses at my group on EE. It's even more flexible than red and green! You don't have to stick to it for a full week, I tend to have a couple of EE days a week, depending on what I am eating.
In my opinion, there are no bad points at all about SW. I've been at target for almost a year now, i've never got to target before (WW, RC, Atkins to name a few) but I did with SW and I continue to maintain and go to group every week.
Good luck with whatever you decide, but for me, there's nothing better than SW!!