Well it's actually a close tie between monokuro boo and mamegoma. In case あなた didn't know monokuro boo pigs are black and white pigs. Their slogan is "Simple is best" they are one of the most 人気 san-x characters. Mamegoma is also very popular. They are little シール blobs. But all in all I would have to say mamegoma is my favourite. They won my ハート, 心 when I first saw their game. link http://www.youtube.com/watch?v=ioMIwAYx3XM&feature=related