Amiga Games are best on Amiga 500.
If you just want to play Amiga games the best choice is Amiga 500 with gotek fdd emulator.
Gotek is cheap and always works.
FPGA emulators such as FPGA arcade, minimig, mist will never be as good as the original Amiga 500.
FPGA emulators are waste of time and money.
The same is also true with the Amiga 1200.
AGA games were craps.
For productivity software the best choice is of course the PowerPC Amiga.
x86 solutions such as AROS are not compatible with the Amiga.
68k Amigas are too slow.
Especially graphics that 68k amigas have is ridiculously slow.
The PowerPC processors are fully compatible with 68k.
Binary translation used on PowerPC Amiga is very different from the full system emulation as in the uae.
68k and PowerPC code share the same space and data.
For the user, this means that he does not feel any difference between 68k and PowerPC applications.
Plus, the graphics on the PowerPC is faster than the fastest PC with WinUAE.
For the developer, this means that it can use the old 68k code in the new PowerPC software, as easy as PowerPC code.
Most of the productivity software works on the new better Amigas.
Some poorly written applications will not work on the new better Amigas.
In my opinion, PowerPC Amigas deserve more to be called Amiga than AGA crap which Commodore produce in 1992-1994.
I really regret that I did not buy a new better Amiga earlier.
lots of nonsense in just one post... gratulation

I will only answer to the 68k parts... every old game needs the amiga chipset so it will not work without emulation. By your wonderful PPC solution you have to run UAE on a platform that is slower than the cheaper PC options with no JIT. Does not sound like a good or at least better option.
Aros X86 is running 68k software in emulation, it is not binary but source compatible. In your list you seem to have forgotten that there is Aros 68k that is both and even runs on 68k hardware without needing PPC (in opposite to your favorites).
FPGA hardware is and will not beat standard hardware but it has a real geek factor, something PPC for me (and many others) miss. So I do not see it as waste of time or money. FPGA Arcade and Apollo are my personal favorites and it will be interesting to see what future brings. At the moment I am quiet happy using emulation and outperforming Sam 460 ex.
And my last Amiga I bought was "AGA crap" (A4000 with graphic card, before I owned a A1200 and before that a A500). So the "crap" is part of the history of many people here in opposite to PPC.
And BTW not only most productivity software is 68k but also most compilers. And even if they work somehow on your wonderful PPC hardware they still compile 68k binaries.