Cutest pet, hands-down, is Frosty
He's my constant companion on my main.
He also has the best on-click vocalization.
Runner up would be Wind Rider Cub
and Guardian Cub
They both seem so happy just to follow you around and share your adventures.
Honorable Mention goes to Hyjal Bear Cub
and Baby Blizzard Bear
The new Direhorn Runt
, Stunted Direhorn
and Pygmy Direhorn
are also adorable.