Cow, Elephant & a Donkey

A Cow, Elephant & a Donkey are debating on who is the greatest among three of them .
So here it goes..................

Cow : I give 50 liters of milk every day and that's why I am the greatest.
Elephant : I eat 100 Kg of sugarcane daily and that's why I am the greatest.

for Donkey results, veiw comments.