Does Grave Armor Set Pieces Purify More Commonly Than Carrion?

Have repeatedly beaten Daimon 2nd form trying to farm for Carrion set pieces. I've purified at least 8 pieces of lvl. 3 cursed armor and have only gotten grave armor and hell fire cloak, lol. Does carrion have a smaller chance to drop from Daimon than grave? Are the asthetics and stats of carrion really that spectacular? Just trying to figure out if the grind is worth it. Really content w/ gold rarified berserkin, flame skirt, gleaming bangles, Diadem, and Dragon's blood ring with Sanguine stalk as the main weapon. Any info and opinions are welcome, thanks.