They work in distinct ways so might have different effect ranges for different people. My priority list from highest to lowest would be BMP, Brite, DCP, Ammo. He's reformulating Brite these days and will hopefully come up with a new batch in the next couple months. Epitome is also good and I hear will be in stock in a bit.
But also, of course, even Matt's wickedly effective supplements will have a small effect size compared to diet and training in a cut.