Both rough (and smooth) collies and border collies originated in the British isles, but they’re distinctly different breeds.
We haven’t owned a border collie, but I know that they’re extremely intelligent dogs. We’ve owned five collies (four rough, one smooth), and they’ve all been fantastic dogs, especially, as I mentioned, with children.
I like to take the kiddos with me to the dog track (we call it the park so Mrs. Higgmond doesn’t get suspicious), so they’re kind of partial to greyhounds. The bar we stop at on the way home (the “food court”) has an old Budweiser poster on the wall, so they like Clydesdales.
Greyhounds are cool dogs. Our daughter’s favorite elementary school teacher had three greyhounds.
I really like Clydesdales. The horse on which I learned to jump is a Thoroughbred/Clydesdale cross: a very big girl, and a magnificent jumper.
Years ago we were looking at draft horse crosses, and came across an interesting “experiment”: the offspring of an Arabian stallion and a Percheron mare. The objective had been to get something that looked somewhat Araby (refined bone structure, dished face) but was rather tall (say 16+ hh). The girl we met had mostly Arabian features – though she definitely had a bit of the Roman Percheron muzzle – but if she’d stood on her tip-hooves, she would have been 14 hh: they got a pony! (To her credit, she was a very cute pony – all black with a small white star on her forehead – but a pony nonetheless.)