Are these Speakers the BEST on Planet Earth ?...

Nothing is the best.  Higher cost does not make it better.  Is a $70,000,000 Ferrari GTO a better car than a 2020 Corvette?  BTW, I am a real Ferrari fan, but they are far from perfect.  Go spend a fortune to impress your friends, but don't be surprised if they do things other than praise your almighty system, and mostly do things with anyone but you.  Put your speaker wires on  little trestles to avoid whatever gremlins live under your floors, without even considering that the closeness of the two wires to each other is much more severe in affecting whatever you are afraid of.  We do not live in a best-or-not-the-best dichotomous world.   You are free to nerd out as much as you wish, but you could have been learning about interesting things like astrophysics, philosophy, and ... Whoops, Gotta go get a life.

I’ll take the Rockport Hyperion speakers 500 lbs each, you dudes and dudettes can fight over the rest. 

Haven't heard them so obviously have no opinion.

But having used the shareware MathAudtioRoomEQ plugin I can say that digital room correction is possibly the single biggest breakthrough in sound quality since the LP, unless you're able to build a dedicated listening room.

And the concern with directivity is also very promising.  I sure WANT to hear these....

I think in the short term there is a huge subjective component in our appreciation for audio gear. In my experience, the speakers which give lasting satisfaction are those which offer lowest distortion, flattest, most extended response, within ones means. My frustration with this site is that most people seem to discount the degree to which the designers experience and research matter. This is far more apparent in DACs, where some hobbyist can sell his creation at prices approaching those of the masters.

It’s funny, in the old days I would frequent high-end audio salons and stores where stereos were sold, and listen to speakers--sometimes SOTA ones--and I’d remember the ones that impressed me. So at any given time I’d have a mental list of what I considered the "best" speakers to be. But in all cases they would be speakers I had experienced for myself, with my own ears, in, like, you know, reality.

No more. Nowadays there aren’t any stores near me that sell and demo speakers, and I no longer frequent audio dealers, and I no longer hear speakers firsthand...so I really have no idea of what might be "the best" speaker, in my opinion.

I miss those days. I’d love to have an opinion about what the best might be. But nowadays all I have is a much less useful and interesting list in my head...namely, a list of speakers I’ve read about and that sound like they might be worth checking out. But in all those cases I’ve never actually checked them out, because I can’t.

I bought my current speakers having never heard them first.