I don't know why plusle is more popular from the people I know. I don't think doing 40 damage to a pokemon-ex is a big deal. Minun can do better because there're more pokemon with pokebody and pokepower than the number of pokemon-ex. Some of the pokemon-ex have pokebody/power so minun can do 40 damage to them too. Therefore I think minun should be more playable than plusle. I'm not saying plusle is bad because it can do 80 damage to an active kingdra-ex.