Charm is very useful among boss battles and tough enemies in New Lumos.
Flower Power is also very useful with New Lumos enemies and DOES A GREAT DEAL OF DAMAGE ON FIENDS which everyone hates.
Sleep Tight is overall neutral it heals your Mii and they wake up with full stats.
Love song is by far the worst move in the game, it is a waste if a NPC Mii uses it on a team that has very high relationships with each other.
Human Cannonball is helpful with New Lumos Enemies.but causes resentment
Hide (laid-back) is a move that causes resentment and hurts one of your teammates