I'd take MWF over Cade any day. Cade is ok, but I don't consider Cade in the top tier of French soaps. I prefer Provence Sante Green Tea to both Cade and MWF.
MWF is my favorite soap. Cade is good, though I probably won't be rebuying it because there are quite a few soaps that I like more. Also, who knows if it will be discontinued or not.
I have both. MWF is on the counter and gets used regularly. The Cade is under the sink and comes out now and then. I do like the Cade and get good results with it, but find the MWF one of the best soaps I've ever used. (Full disclosure: I've been having a fling with Irisch Moos lately.)