I'm quite happy with the FPGA path.
On the off chance anyone wanted to resurrect the boxer, that would probably be doable without reaching $100 million+ in development.
It would be an upgraded big box Amiga which you could add 24-bit gfx.
Have it also in Mini-itx for a wedge system.
I never got to play with an Amithlon machine, but I assume it would be like WinUAE only better.
I should do this poll in another year. This was more of a quiz than a serious poll.
P.S. I should have added the GBA 1000 option, where you redo the ageing hardware chip for chip.