VIC-20 was an OK machine. I would replace its entry on the list with the original Apple Mac, I mean at least the VIC-20 had colour, it was much more competitively priced too and had more games for it! There were many other computers around at the same time which were considerably less powerful.
Amiga 600 is OK too, most of the complaints against it seem to be that since it ran OS2.0 it wouldn't run some Amiga 500 games which were written in a lame hardware-banging manner. The same criticism could be applied to Amiga 500+, 1200, 3000, 4000, etc.: it's really a criticism of the game library rather than the machines themselves, so I'm not sure why the A600 is always singled out for martyrdom. A600 was considerably more powerful than an A500: eg. more memory, built-in modulator, PCMCIA slot, more compact form factor, optional built-in hard disk, better OS, etc. The price point was pretty impressive too: I remember they could be bought new with hard disk for about $A400, at a time when virtually every other computer on the market was over $A1000.
I wonder why there are no Wang machines on the list, they were dismal.