OP... I think ... you are "assuming" that a highly intelligent breed would be the easiest to train?? That kinda sorta makes sense?? But that is not exactly how it works out! Some of the worst behaved dogs are in those top 10 list! I used to think ... all the "Herder Dogs" were "all" horrible, badly behaved, obnoxious, barking, people biting, car chasing, wild horse chasing miserable bundles of fur!
And all the one's I'd seen were (like that) ... save for one! My neighbors, Herder (Dog) was now mine! She'd escaped the yard one time to many for him ... so it was off to the pound you go! Sigh ... while I had no use for her. I do rescue work, so (fine then) I'll take her and help her find a home. Aside from being house broken, she knew "nothing!" Puppy mill mamma "always" in the back yard and she would howl and cry for hours!!! My wife and I constantly for at least a year were calling animal control (barking and howling at all hours of the night!) I know the (owners) finally got cited at least once ... nothing changed! So that ... was the dog I now had in my possession!
I did nothing with her for a few weeks, aside from walks and outings with my dogs. And it seemed like well she was going to stay with me??? I'm more of a Bully and Boxer guy so all that fur (Molly) was not my thing but ... if the dog is staying ... then trained and well behaved ... she will become.
And ... it worked out great!! The dog was freaking brilliant! My wife was pretty much crazy about her out the gate ... she wanted to keep her ... but sigh ... I have a lot of "attitude about dogs/breeds" .... kinda of a "Show Me" kinda guy and I'd never seen a well behaved "Herder" dog around "me??" But hey as I say "Show Me" and Molly did ...yes ... I was impressed. I finally broached the subject of keeping her (it had been three months maybe???) Molly was still on the list. So we had just started talking about keeping her and then ... the phone rang!!!
A thirteen year old wanted a dog for X-Mas and saw Molly online and said ... that's the one! Of course as fosters we had first dibs ... but in as much as my original goal was to help her find a home ... we played it out. Maybe you know the kid won't like her???
Awe well ... sadly??? I'd done my job to well, Molly and the kid got along great ... only had one "Test" to pass. If the dog walks wells on a "loose leash" we'll take her! At that point ... I understood "Molly" was gone! The one thing I excel at is "training a dog to walk properly on a loose leash" (Slip Lead Leash) guy. So outside we go I explain a bit and hand the leash over and off they go up and down the block and "Molly" walks calmly by the child's side like she'd been doing that forever! Off she went to her new home, I'd done my job to well???
Had it been left to me ... I'd have kept her, but "women" sigh ... "Marilyn" was whining about break some kids heart at Christmas, if I did not want to place her ... I should have taken her off the list, before the kid saw her ... and so it goes. But we were heartbroken that Christmas.
Yesss .... so "Herder Dogs" are intelligent indeed and way to much work and effort for most people! That is the "problem" with the top ten for a lot of people!
And then came "Rocky OS WL GSD" my second experiance with a top ten dog! Him I kept and "ultimately" it worked out fine but it was a very hard bumpy ride ... many lessons to be learned there ... one of them being "two dogs are a pair three dogs are a pack" And if you have Dominate male dog number one and add Dominate male dog number two ... you'd best have your "act together!"
Had I seen problems ... out the gate ... well most likely ... I'd not be here??? I'd had at that time more than a decade of experiance with American Band Dawgs. APBT/Boxers and Boxers ... my first WL GSD ...no big deal?? Yessss ... well ... not so much! The first "trap" I fell into was the old "my dog changed thing???" We got "Rocky" at seven months old and for another seven months ... there were no issues that I saw???
And then one day "out of the blue" and now at a full grown 116 lbs ... "Rocky" attacked Gunther (American Band Dawg) and now ... it was game on like "Donkey Kong!!" Many lessons to be learned and I got the first stitches in my life every ...breaking up a dog fight!! And that crap ... was just round one of two! Ultimately ... I never had the opportunity to solve that issue! Gunther passed due to unrelated issues following the "fifth" fight and Rocky "always started them!" But you know ... lack of structure. He was given the opportunity and took full advantage of it!
Ultimately ... again in retrospect, my failure was caused in part because I was caught off guard and I was constantly "reacting" to "Rocky's" actions instead of "preventing them" ie "lack of structure." What I had done in the past ... had been fine but unbeknownst to me??? All my other dogs had been low rank drive dogs??? There place in the dog pack ... was good with them. Rocky was not willing to accept being dog number two (Never any Boxer involvement in the dust ups) without "protest."
Round number two was to follow H/A??? "I don't much care for company" was how or... first guest "ever" were greeted ,A cold hard stare and a low growl .... WTH??? But this time ... I was ready ...yeah time for "Pay" back! Ultimately we got it done, not that hard and it did not take force or coercion ... it did take "out thinking him" and "rules structure and limitations!" He does not have to "like" anyone but he does have to be "civil!" I guess all of that was seven years ago ... and "Rocky" is still here.
I kinda sorta outline how I got it right and what I did wrong on here. Get (R/S/L) right out the gate ... not that hard (if you know) and you can skip the middle part (figuring out what went wrong??) I don't recommend GSD's of any type to most people but that's mostly becasue the people I know and the dogs I see all tend to be fools! With rare exception ... there are a couple of "good dogs" near me and "we" smile and wave at each other from across the street! "I don't know you, I don't know your dog ... you keep your distance .... we will do the same" ... works out fine!
Well ... kind of a wild tangent here but these were my experiance with a couple of the top ten dogs, and more directly to your "topic"... as far as I've seen in the top ten list ... I don't see them making any distinction between WL and SL, GSD's?? Most likely ... that is an insiders thing??
Aww well ... I'm a "Boxer" guy also and the top 10/20 list ... is way to crowed for us but you know ..."we just don't care."