None of the two PPC computers out are "Amiga" computers. One just has the badging slapped on.
I agree with the A4k being the top Amiga...and for the rest, UAE works perfect.
If you want to be completely pedantic you can easily say that the A4000 is none an "Amiga" computer either.
I have A1000, A4000 sitting under it and µAmigaOne sitting next to the A4000. Also A1200 placed behind the TV.
If you watch at the A1000 and then at the A4000, later at the A1000 and then the µA1 you can easily say that they have nothing similar except the names.
The A1000 have 68000, needs Kickstart disk to boot, doesn't have IDE controller and uses strange Apple2 alike 80W PSU.
The Keyboard from the A1000 isn't working on the A4000, neither the A4000 keyboard is working on the A1000,
neither the keyboard from the µA1 is working on the A1000 or the A4000 (unless I use the Lyra adaptor on the A4K).
The disk drives on the A1000 and the A4000 are different too (the µA1 doesn't have a floppy at all). But all the Amiga machines I have run
AmigaOS in one version or another on them and for me all they are Amigas.
The most compatible Amiga I have is my A1200 with WHDLoad installed.
The fastest is my µA1. The best emulator is WinUAE (have JIT).
The only real Amiga at
pedantic level is the Amiga 1000. It doesn't even have a numbers on the case. Just Amiga and the logo.
It was designed by the father of the Amiga - Jay Miner. The others weren't.