I am trying to understand if there is a logic in health/life globes drops in order to setup a correct strategy in monster killing order. Are they completely random in chance and "size"? Are there monsters (types) that guarantee the drop of a life globe on death or at least that guarantee a certain globe "size" when it drops?
It seems that there is a logic in health globes drop, at least when dealing with elite enemies (blue, yellow mobs):
Also, Health Globes dropped from blue and yellow monsters restore 35% of your life (+ boost on equipment) as opposed to 20% from globes dropped by normal monsters.
Normal monsters instead only drop them at death, and the odds depends on the monster.
From my experience, a health globe is guaranteed if you eliminate:
This is not including the chance from killing other randoms around the world and this is just speaking from my experience.