WW has always worked for me, but I do find 26 points per day a bit of a struggle. I'm starting a diet again tomorrow, I wanted to lose 8lb for my hols in 8 weeks time. I'm told that under the 'old' WW scheme, the daily allowance always used to be 29 points, and that it's quite possible to use weight with that allowance.
However i don't want to waste 3-4 of my 8 pre-holiday weeks trying something that's not going to work - but on the other hand the extra 3 point per day sounds very appealing (but only if I'm losing weight)!