It's not a case of which works best, It's a case of which works best for an individual.
In short, they ALL work best if they are followed and they can all be followed for life as they all have their own mainenance programmes.
I've done WW and SW (and RC and Atkins and GI!) and, for me, SW is the best by far as it's the only one I've got to target on.
However, I still maintain that there is no BEST, SW and WW are both as good as each other.
