Programming the #c128 VDC in #assembler is.... stupid. Not difficult per se, but complicated. it's really f*ing with your brain.
I am not an experienced #mos6502 / 6210 / 8502 #assembler coder (or even any assembler), so this might not be the most educated opinion :p
Coding for the #c64 seems to be generally more complex than #nes for example.
Which is fine.
One is a dedicated games machine, the other one a home computer that happens to run games quite well.
@multitink assembly for #c64 and #nes are very simple per see, but it gets complicated once you start pushing the limits of these machines and the best games on these platforms do just that...
@multitink I also prefer #c64 over anything else so I'm slightly biased :) But I do have a feeling that #c64 development still going strong!