@amigaguy
I'll take my 2K with the bliz '060 thanks although I do have a 2630 board gathering dust - would that count? ;-)
Best and worst is all relative to the use it'll be put to.
To save space and time I'll restrict myself to the major model lines and only released product.
A1000 - the original - 'nuff said.
A500 - cheap 'n' cheerful - primarily responsible for the Amigas' sucess in the home market.
A2000 (and variants) - built like a brick outhouse - video toaster primarily responsible for maket penetration into video editing shops.
A3000 (and variants) - much more than a 2000 with a good feature set but somehow not quite enough at the time - a flawed hero.
A4000 (and variants) - logical successor to the 2000 - for some bizarre reason some of the good features in the 3000 were removed - another flawed hero.
A600 - tiny tiny box - very cute but why?
A1200 - logical sucessor to the A500 - more power, better chipset - huge hardware hacking potential.
CDTV - a great idea which the world was not ready for.
PPC Amigas - to be honest, I dunno - the question I keep asking myself is "where's the killer app?".