For tank pulls:

Medica II vs Cure II:
- Both have 700 Potency
- Medica has a longer CD but it's AoE good in case some DPS get hit by AoE?
- Cure II generates lily
- Cure wastes less MP
- Since Cure II generates lily it also gives you Divine Benison for free.

So it's Medica II vs Cure II and Divine Benison

I think we have a winner for tank pulls -> Cure II and Divine Benison > Medica II