ZX Spectrum Next Vs Mega 65 Vs Ultimate 64?

[Amiga Forever]

ZX Spectrum next? It got big fans based, lots of games available and there will be ZX Speccy next version 3 coming with C64 Core which is weird to play on zx speccy next!
Good price point.

Mega 65? It got small fan based, not many games for it, a tape deck doesn't link with Mega 65 and it is very expensive to buy sadly!

Ultimate 64? Good price point but I dont think available as whole of it including Ultimate 64 case with it! Can link with tape deck no problem. I saw website of it and it does sell hardware only without Ultimate 64 case!

No Flame War please

 

[YouKnowWho]

Mega 65 has a AMD Artix™ 7 200T FPGA with 215,360 logic cells. This capability and potential should not be overlooked.

Since all of these systems are FPGA, in the end the key for me is to get the broadest established machine core implementation choice if I'm playing the FPGA game. And the benchmark there is clearly MISTer.

EDIT: I don't mean to derail this, but since these three machines are using the AMD Artix FPGA, is there a list of cores available for this FPGA? Is there a site/link where users can see a list of which machine hardware this AMD Artix FPGA can chameleon itself into?