I don't understand why anybody would suggest an A500 as a gaming machine, you can't play AGA games on it which rules out a lot of the best ones (most games from 1993 onwards.) So for me the choice for a gaming machine is either an A1200 or A4000, the only two AGA Amigas (or a CD32 of course, which is basically an A1200.)
Then you need to decide if you prefer a console-type computer like the A1200, or a desktop. Personally I like the A4000 as you don't have wires everywhere, and for me the best Amiga games were mouse games so having a desktop makes sense anyway.
So the A1200 is probably the 'best' choice, but don't rule out the A4000 either.
Last edited by edd_jedi; 14 November 2013 at 17:42.