In Watership Down, power comes in many forms, but it generally has one result: making others do what you want. The simplest form of power is just brute strength: that's the power used by bully rabbits like Toadflax (Sandleford) and Vervain (Efrafa). Even good rabbits aren't afraid to use force to get things done. But other (and more interesting) rabbits have a whole range of other powers, including Blackberry's inventing power, Hazel's intelligence and cleverness, and the power to inspire others, like Dandelion does with stories and Woundwort does with his great bravery (and tremendous violence). Now that's power.
In Watership Down, the most powerful rabbits use their intelligence more than their strength.
Watership Down constantly reminds us that rabbits are weak, vulnerable to everything from weather, to predators, to human development.