1. Sega Genesis
2. Super Nintendo
3.Sega Dreamcast

Sega Dreamcast oh that would be great!!!
Super Nintendo
Nintendo 64

Dreamcast
Amiga
Arcade

1. Amiga
2. Commodore 64
3. Dreamcast

1. Dreamcast
2. PS2
3. PS1

I'd love to play Perfect Dark, so Nintendo 64.
My second choice would be Dreamcast, because of the Shenmue.
And my last one... Is Super Nintendo Entertainment System. Final Fantasy VI? Chrono Trigger? I'd love to play them legally on my PC.

As listed they would be:
1.Amiga(lot of great RPG's)
2.Arcade(as collections like - Universal(Mr. Do/Ladybug/Cosmic Avenger) or Vectorbeam(Warrior/Tailgunner/Space War)
3.Sega Dreamcast
4. though not listed I would say Atari ST

1. Amiga
2. Super Nintendo
3. Sega Megadrive
Would be awesome to get to play some of the classics from the earliest days of my gaming career.

1)Amiga
2)C-64
3)Dreamcast
I agree with others who've said it's not worth trying to compete head-to-head with the current video game consoles. My suggestion would be to focus solely on computer-based retrogaming. I put the Dreamcast on there partly because there wasn't a 3rd computer and also because no one's currently offering it in the same sort of way you guys would be. That probably would be a good thing to jump into.
But otherwise, keep it to computers - especially the Amiga. I would imagine classic Amiga games shipped with a pre-tuned emulator (another thing almost no one is selling) would sell quite well.

1 Nintendo 64 (Ocarina of Time!)
2 Super Nintendo
3 Sega Dreamcast.

1. Amiga
2. Commodore 64
3. Neogeo

no turbographics 16? boo... no sega saturn? also boo!
i guess out of the choices given:
1) C64
2) Dreamcast
3) Amiga

- Dreamcast
- N64
- SNES

1) Sega Dreamcast
2) Sega Genesis
3) Super Nintendo
I'd love to see GoG offer a wider variety/alternate selection to the Wii Virtual Console and Steam's Sega games! And of course, more and easily available Dreamcast games can only be a good thing.

Sega Genesis (Love the "Uncharted Waters" and "pirates" series)
C64
Amiga