What leadership potential elements exist with the different animals in Animal Farm?

On the Jones
farm, among the animals who rebel against his cruelty there are animals who display admirable
leadership qualities:

  

A
"majestic-looking pig with a wise and benevolent appearance" Old Major envisions a
better life for the farm animals.  He calls them together and initiates the rebellion against
the despotic Jones, who often neglects their care and feeding. He convinces the animals that if
they remove Man from their environment, the cause of their hunger and overwork will be abolished
forever.

Although he is too idealistic and creates some propaganda with his
song "Beasts of England," the old boar has the interests of the animals at heart,
encouraging them to gain control of their own lives, for "Man serves the interests of no
creature except himself."

Snowball is the best...