I think "it depends" is really the best way to put it. Alpharetta is closer to already-existing mass transit lines (even if many consider said options inadequate). If demand for it exists, transit options from here in Gwinnett County could be added more easily. It would also renovate what is widely considered to be the remnants of a dead shopping mall. However, the biggest complaint I hear is that it's not "in a central location" ...which, the reason for has already been stated ad nauseam, so needs no further stating.
On the other hand, having the team and venue located six miles north in Forsyth County has the potential to provide an economic boost to a county that's already growing at an exponential rate. The downside is that Forsyth is outside the immediate "Atlanta area", as many of us still remember when "metro Atlanta" was only five counties -- Fulton, Dekalb, Cobb, Gwinnett, and Clayton. It's only six miles north, sure, but ... it's also six miles farther away from downtown and there's no existing transit option to get there. Even Uber to and from the area is spotty at times, though that undoubtedly would change if a franchise is awarded to the Krause group.
Sometimes, it's all about actions being reported on. Krause's name has been out there since mid-2023, and if I recall correctly, met with Bettman sometime in 2021. Meanwhile, I first heard rumors of Carter seeking financial backing for a bid as far back as 2014, when I still lived in Jonesboro.
To me, I think Carter has a very solid foundation to build on, but it's difficult to believe that when we don't hear any news at all from him or his camp... hence why Krause is the perceived frontrunner. Everything he's talked about appears to be falling into place, right where it belongs. This makes Carter dangerous to him, because Carter is the wild card. Right now, his cards are so close to his vest, they might as well be under his skin.
Whether it's in business specifically or life in general, the scariest opponent one can have is one who remains unseen.