Lots of interesting answers and opinions being expressed in this thread, and almost zero trolling or baiting of members who disagree with each other, so thank all of you for that.
As a strong supporter of AmigaOS4.x and a primary supporter of MorphOS3.x in the USA, it almost pains me to write the following. I think that many users in our community who can look at the "Big Picture" objectively realize that AROS is the only real choice we have for moving forward toward more modern systems without limitations or "work-around" compromises. If the goal is to have a platform that works like the original Commodore Amiga in many ways, but has already made the break away from several undesirable design decisions contained in the original API that have caused problems, or held back progress, AROS appears to be the clear leader in making good choices for future development. What AROS lacks is organization and some of the polish of the user interface, that might be present in the other NG Amiga choices. If AROS had more community support and could gain more programmers working to complete more of the features and functionality of AROS, or if it could gain more programmers creating native AROS software, maybe it would begin to emerge as the leading choice for NG users? The split of our community into 4 parts seriously slows down the speed at which software can be created, or the number of available programmers willing to work on just one of the 4 remaining platform choices.
It is still unknown if AROS, or any of it's variants, will succeed in reaching it's goals, but to me is seems to be making better progress the last couple of years. I have already expressed many times my hope that if/when AmigaOS4.x and MorphOS3.x reach a point in their development where they decide to switch to different architectures, or if/when they lose momentum and start to fail as a organization, that they would dissolve and the programmers would join forces with the AROS developers, so we could have a unified platform again, at least unified for the NG Amiga users wanting something different than 68k Amiga hardware and software (I know that this is unlikely to ever happen, but I can still hope for unification and faster progress through combined efforts).
The keys to survival and possible success in growing the number of users wanting a NG Amiga inspired platform in our community are:
1. Better tools for ease of software creation. Software availability can make one platform a clear winner, but only when the difference in the amount and quality of software for that platform is far above the other similar platform choices. None of our current NG Amiga platform choices have a significant advantage yet. For example, when the OWB (later renamed Odyssey) web browser had reached a level of functionality and stability that far exceeded any other browser for Amiga & Amiga inspired platforms, it made many users take notice of the one platform it had been developed for, and had them asking for it to be ported to their platform of choice. It may have even been successful in getting a few users to become MorphOS users, who had not previously considered becoming a MorphOS user. I know this because I was the person promoting MorphOS at several AmiWest Show over the last 4 to 5 years, and saw the change of opinions and increase in respect those users gained, after seeing how well OWB/Odyssey works, as well as other features and software available for MorphOS3.7. My point is that software makes a difference, and none of the NG choices has a large enough advantage yet to make it a clear winner over any of the other choices to most users. Software availability is why all of us also own Windows, Mac, or Linux computers, in addition to what ever Amiga & Amiga Inspired systems we may own. If Aeros continues to improve so that it can seamlessly run most or all of the Linux software library, without the user being able to tell the difference between the software being a Linux program or an native AROS program, or legacy Amiga program, AND the Aeros user experience can become more like the Amiga it was inspired from, it may gain many new users in the future.
2. Reasonably priced hardware that is easily available to everyone, but still has sufficient performance to run all kinds of software that a typical computer user would want to run. It does not matter what architecture is used, so long as the platform has drivers to fully utilize all components of the architecture chosen, and the architecture has a future development path in front of it and large enough market that will keep it available for many years.
3. A difference at the OS level that makes users and programmers want to use it instead of the already established OSes available. This difference in user environment and/or structure and how the OS works has to be compelling enough to make it worth the time and considerable effort to create and maintain an OS outside of the mainstream choices. AmigaOS1.x to 3.x had that difference in the user experience that kept many users and programmers interested to this very day, but it also had design flaws that have not been easy to fix, while keeping the user experience close to the same, so people want to continue using and improving, or creating new software content for any of the NG Amiga inspired OSes. Without 1 & 2 above, 3 can only hold the interest of a diminishing number of users and programmers and the length of time it can hold the interest of any of us varies, which causes some to leave, and very few to join any of the NG groups from the "outside".