If I could only have machines from 1981 and 1993, I would be perfectly content.
For EM's, I would agree that 63-67 have some of the most iconic wedgeheads.
2013 was admittedly pretty sweet with Metallica, Star Trek, and WOZ. All really stellar games.
If I had to pick one winner: 1981 with a bullet.
Black Hole
Flash Gordon
Centaur
Fathom
EBD
That's a lineup to covet right there.