These are two of my favorite breeds... I'm kinda torn between having one or the other. In a couple of years (if I don't end up adopting another random dog by chance!) I'd like to get a puppy... I never had a really young puppy, I adopted all my dogs when they were 7 months or older. And well, now that I know what needs to be done, I feel like I'd be ready to have a one. So I'm torn between these two breeds. I live in a flat with a small yard, but I take daily walks with my dog. Usually a 40 minutes to an hour walk, with some off-leash time, depending on how many dogs he finds to play. I also play a bit of fetch and when I'm fostering dogs I usually let them spend quite some time in the yard, playing. I am away from home for a long time (some days 9 to 22, some 9 to 12) so part of the reason I want another dog is because I want a doggie pal for mine. But the main reason is, I just can't have only one dog, I've lived in a multi dog household since I was like 7 years old. Obviously, thinking of this fluffy breeds, I don't care about shedding, I'm used to finding hairs everywhere. My dog sheds like crazy. I expect the FURminator will be able to help a bit, haha, but I'm really used to it. I'd need the dog to be able to do some therapy activity - either learning agility so kids can "train him" in the sport, fetching balls or toys or stuff, doing tricks, or just being a cuddle buddy. I think they'd fit the bill for at least the first three, so... The main pros of the sheltie are its size (this is a big pro, I like big dogs, but small and medium dogs are easier to take for holidays, take to friend's houses, etc), longer life span, and some people say they are easier to live with in small spaces. Main cons are more health issues, and that they're rarer and more expensive. Main pros of the collie are fewer health issues, cheaper, and I know at least two very good breeders in my country. Main cons are possible issues with flat space. I got told by many people that they shared they lives with a collie or more in a flat without trouble... but I'm still not sure. What do you think?