Since the two sides here are separated by oceans whereas I am separated from the Americans by only an imaginary line, yet am commonwealth, I shall mediate.
In the US, biscuits are served with something they call 'gravy' but more resembles and tastes wallpaper paste, at least in most restaurants I've been to. This gravy, as far as I can suss, has evolved from the more succulent Germanic/Polish/Ukrainian butter cream sauces served with the various dumplings and potato creations in those regions. I have had some examples of the gravy over biscuits where it was loaded with sausage bits that was delightful. I have never been able to determine why some regions leave the sausage out and eat the paste, other than being the evolved version of the aforementioned European delight. Scones are merely the biscuits sold at Starbucks where there is no gravy in sight.
No offense, but you are the ones that have the audacity, to Wisconsin's dismay, to proudly call the vile sheet substance that contains traces of cheese "American Cheese" so you have a record of messing good food things up.
Here in Canuck, the terms are interchangeable depending who you are talking to but in my mom's kitchen, they were always two different critters with their own charms and compositions. Biscuits have layers that you could pull apart: miraculous since they arise from a simple sheet of rolled dough. Scones are less flaky, but just as light and airy, but replete with nooks and crannies to catch the condiments.
I have yet to meet a biscuit in the USA that approaches the layered magic mom pulled off that separated them from scones, but have had some nice light fluffy examples regardless. Yumm. I have also had the paste gravy that was obviously cooked by a pro that was delicious; I assume this delight is readily available in home kitchens everywhere but at restaurants it can be a crapshoot.
Now, what they call biscuits over the pond are just calked cookies in the lexicon here, despite the fact that the packages clearly list them as biscuits. They have been lumped in with oatmeal and chocolate chip varieties. We colonials suffer from the isolation from our genealogical lands and the influence and culinary evolution of our republican neighbors to the south. Still we retain a melting pot of staple recipes that remain un-evolved from their European roots that I can not readily find in The States.
These delicacies are regional, according to what ethnic groups settled into our regions, but suffice to say that for a full one third of our landmass, you will not attend a banquet that doesn't have peirogy on the buffet. Then we have the French influence that resulted in what I claim to be our national dish, Tourtière. Outstanding.
But I digress. Put sweet syrup of any kind on a shoe and it is a delight.