Moist Chocolate Cake - my standard

I have a very high standard for chocolate cake. I wud only eat moist chocolate cake and the moisture must be really moist! So I am now in my quest looking for the best moist chocolate recipe. To date I have tried 4 recipes and so far only 1 met my expectations. Last night I made one which called for 1 cup of stout. Well, it turn out to be good but still not what I want. Hopefully I will find the recipe soon else it will be chocolate cake week after week...LOL.