When I first saw the title three dogs one stick I got a little worried, I've see a title similar to that... joking aside heres my critique.
One problem I had with your videos is there didn't feel to have much narrative behind it. You have one tossing a ball to your dog and he can't quite catch it. I'm sure it would be interesting for friend and family to see stuff like that, but for a random person to want to see it, the content would need to be either very distinctive of the animals. Or have you talk in it about whats going on. Tell us about your dogs in each video, have your voice on it. Show yourself interacting etc.