I had to vote very playful. I really have three VERY playful dogs (Molly, Kirby & Muffin); 1 sort of playful when she's in the mood (Carly) and one don't bother me with that nonsense (Max).

Molly is the most playful out of the bunch. If she has her toy, she'll play for hours. Her toy is a raggety old small soccer ball with the squeaker chewed out. Right now it's put up because she, Kirby and Muffin have been fighting over it.

Observation I've made is that even with as many toys as we have, there is only one toy at a time that anyone can play with.