The Bron isn't really comparable and shouldn't have been included TBH. HSS and HS are different, plus the Bron system is completely different and super-highend. They're not playing the same game.
Godox AD600-Pro wins pretty easily against Profoto B1X, on the small stuff as well as the headlines - more powerful, faster recycle, great colour, brighter in HSS mode (though I don't believe his meter readings for a minute*) and brighter modelling LED. Robert Hall doesn't seem bothered about the modelling LED but it's crucial to those that want a single unit which works just as well in the studio. Plus Godox has the modular extension head, a killer feature for use on high stands, or a boom or as a shoulder pack. And all that's before we come to the price - half or a third the cost of Profoto, depending on what you compare. Everything else pales into insignificance. Even if Profoto was better, it's simply unaffordable and unjustifiable for many people like me - it's not even on the agenda.
If it was, I'd also be looking at the new Elinchrom ELB500-TTL that is now a close competitor on specs even if also at Profoto prices. And with compatibility with Phottix Mitros speedlights and Indra heads, Elinchrom has played a clever hand to deliver what is in effect a similar system to Godox at a single stroke. TBH I'm surprised it's not getting the same kind of attention on the forums as Godox and Profoto, early days I guess.
*No meter can accurately measure HSS output (or HS) unless it knows exactly which part, and how much, of the flash output is being captured by the camera. Different cameras vary, with further changes according to the sync timing off-set. I'm not sure how useful the Sekonic 858 meter is in this respect, if at all, but there is an easy and accurate way to measure HSS and HS output - you simply take a picture. With a properly controlled set-up, and using the same camera at same shutter speeds, you get all the answers.