I love both, but see alot of difference between the two, I have two cats, which I have had since before I moved in here, I've tried separating the two but they became very depressed, quit eating, using the kitty litter, and howling. I was told by a vet that animals who are use to another have been known to died with a broken heart when separated. I've tried telling the management that cats can't cause the damage to an unit that a dog can, can't disturb neighbors when as much noise. Cats, cause they don't have to go outside are not a danger to others. Mind you I know that it all depends on animals care giver, and I love both, I just want to know which do you think make better indoor animals and why?