It's hard to pick one to like the best. I've held koala's, petted and fed elephants, and watched a penguin "parade" on Philip Island in Australia! If I had I had to chose, I think I'd go with the penguins...they are so helpless and are so wondrous, as they waddle, yet they are fantastic swimmers! Koalas certainly are cuddly, soft and lovable, but sleep so much! Elephants are so strong, good workers, yet they're so huge! Hard to pick just one, but I'd pick the penguin...and as for penguins, it's amazing how many varieties there are of a penguin. Adorable paintings of all three!