which do you think is the most powerful image in when you are old and why
Crane represents wisdom
unicorn represents strength
badger represents courage
unicorn represents strength
badger represents courage
Not sure if there was a specific symbol for strength. There wasn't a specific warrior symbol, anyway. However, the boar and the bull were especially associated with strength, and the Horned God, Cernunnus, was considered among the most powerful of deities. You can see the traditional image of him here.