[userbinator]

If you start from 8080/Z80 and work your way up, you will have a very different perspective. 16-bit (and especially 32-bit) x86 looks quite regular if you see it in the right way; although IMHO the 64-bit extension wasn't designed as well as the move to 32-bit.

[muyuu]

I did Z80 back in the day and I think x86 is a mess, ever since 286 at the very least. It's absolutely terrible. Not just because of the ASM itself but because of the whole OS/computing paradigm it grew with.

[wglb]

Well, I always thought that the motorola 6809 was much more attractive. As a compiler writer during those days, the lack of regularity of the 8080, z80, were a pain.