Well since you cant actually unequip anything but swap equipment I would say its the stats you have at the moment as most battle fearures in this game are not too deep or planned out and if their is any thing that would be different its that at most it wouldnt count stats gain from another booster but that is most likely not the case. Tbh they only serve to belp climb TToF(The Tower of Fame) and I can see that based on the stats Ginseng Root will be the best buy next to Codysceps as Root increases the base stats that wins battles and Cody increases attack power.