What about an angel food cake (very low in points) with some ff cool whip and some berries. If you cut strawberries up and add a teaspoon or two of sugar and let them sit in the fridge a while they will develop a nice juice to them and it is really good drizzled over the cake. I made this last Thanksgiving and even the non-WWers loved it.
I have tried to make the diet soda cake (with high expectations) and it never seems to come out edible - bleech! Rather just have a small portion of real stuff or skip it all together.
Just thought I would add that you can do two different things for your pie crusts, well the two different things that I do anyway! LOL
One is for a regular pie dough type crust use a few layers of filo dough instead. It's much lower in points values and still gives you a crust.
The other is instead of a graham crust, take some original fiber one cereal and put it through the food process to crumb consistency. Use this in place of the graham crackers. Adds fiber and lowers points!