I had to invent my own, though it's based on the principals of diets I have tried, and the concepts that were easy for me to "live with".
I count calories first. I have a limit, and (almost) always stay within that limit. Next, I lost a lot of weight at one point in my life using the old weight watchers exchange plan, (I'd probably go back if they still did that plan just for the group support). So I base my food into groups and make sure I get adequate servings from all of the food groups daily....BUT, I always felt the exchange program was protein/carb lopsided. So I kind of switch it around to be a little more like south beach, where I eat fewer carbs and try (almost) always to stay away from anything refined. (Sugar/flour/corn sugars/white rice). I eat more protein than carbs...Oh, and volumetrics...I think I invented that long ago...

I eat unlimited "free" WW veggies, and a lot of them!!...etc.
The results have been amazing, and I had been (almost) free of craving until Christmas when I allowed myself forbidden foods. It's been a challenge since then, but I'm getting and staying back on track. Sugar is evil I'll tell you! E.V.I.L.

(For me and IMHO)