Anonymous wrote:Kittens learn to pee in litter with almost no training.
Puppies you have to take outside in the middle of the night.
I have never taken a puppy out in the middle of the night -- take away the water 4 hours before bedtime and they'll empty out for the night on their last trip.
OP, if you're talking about bodily functions, kittens are easier unless you were planning to take a walk every few hours anyway. Also you will feel like an idiot praising your puppy for peeing and pooping outside.
If you're talking about all the elements of staying where they're supposed to and not into forbidden areas, and not destroying stuff, I'd say puppies.