She love all toys that squeak but this one is the absolute favorite squeaky toy.  We have lots of toys for both dogs but this one is special.  One of our dogs recently lost her eyesight to glaucoma and she now carries a large toy around to sort of cushion her contact with various things like walls and doors and chair legs etc. etc.  I guess it's her version of a cane.  Of all the toys for the dogs Lambchop is softer so I'm guessing that's why its her favorite.  I will be ordering some extras to put back so she will always have this toy to help her find her way.