Sure, depends on the situation and all that. But maybe you play set-piece battle that allow spellcasters like clerics to blow all their high level slots on Cure Wounds, cause they've got the slots to splurge. But I'm not seeing much difference between a PC on 5hp from a 1st level Healing Word and a PC on 16hp from a 3rd level Cure Wounds - if the cleric is going to burn an action and a 3rd level spell slot, I'm seriously asking whether the cleric has something better to do with their action and a 3rd level spell slot that hope like hell the rogue they've just healed will remain conscious for two rounds at least.Come to my games then. Both spells are used up to the point where Heal is available. My players will avoid the whack a mole syndrome at all cost since their enemies will react to this tactic by slaying the falling character should he fall again. So the higher the spell level the better and the most hp gained the better. The player wants to be as far as falling again as possible. Very often, players will a character as soon as he is within falling damage potential by a critical. This prevent the whack a mole too. The bonus action is often used for the Siritual weapon but not always.
Cheers, Al'Kelhar