1. Super Nintendo
2. Sega Dreamcast
3. Nintendo 64

Why not all consoles 8( ?

1. Sega Dreamcast
2. Amiga
3. Commodore 64
(not in order of preference)

1. Super Nintendo
2. Sega Dreamcast
3. Arcade

1) AMIGA
2) Commodore 64
3) Sega Genesis

1. Nintendo 64
2. Dreamcast
3. Super Nintendo

I would love to see Amiga, Commodore 64, and SNES

1. Super Nintendo
2. Commodore 64
3. Sega Dreamcast

1. Super Nintendo
2. Nintendo 64
3. Sega Megadrive/Genesis
But PLEASE PLEASE PLEASE give us pre-installed "XboX 360 Controller" support!!!

From the available options I would choose:
1) Amiga. Pure nostalgia. Of course there would be an overlap with the PC, Cannon Fodder being a good example, but the machine has enough exclusive titles and simply better versions of games also found on the pc.
2) Arcade. Being able to play good to perfect version of arcade classics, like the Konami brawlers for example, without having to resort to fiddly emulators would be very nice.
3) Saturn (and Dreamcast if possible). Both can be found in my collection but are unfortunately quite unreliable. Again, being able to play gems like Panzer Dragoon, Nights and Shenmue without having to resort to ceremonial sacrifice would be great.

1. Super Nintendo
2. Commodore 64
3. Sega Dreamcast

1. Super Nintendo
Of course, the console of milestones like Super Mario World, Chrono Trigger, Secret of Mana, Terranigma, The Legend of Zelda 3, Final Fantasy 3 to 6, and many more.
2. Sega Megadrive / Genesis
Another great console. At that time of course I was a Big N freak, hating Sony and Sega (the hate for Sony remained due to them spreading malware). However, there were also many great games for the Megadrive, just think about Sonic.
3. Nintendo 64
There still is no perfect emulator for the N64. I only had a few games for that console, but they were real pearls:
Blast Corps, Banjo-Kazooie, Banjo-Tooie, Bomberman 64 (sadly lent that to someone and never got it back), Donkey Kong 64, F-Zero X, Mario Kart 64, Super Mario 64, Quest 64 (ok, that was not good), and probably some I forgot now. I'd at least love to play Blast Corps and Bomberman 64 with a perfect emulation again. If they come to GOG, I buy it. Mario Kart 64 was nice due to multiplayer so probably nothing I'd buy again.

1. PS3 - because it will have grand tourismo 5
2. sega genesis( megadrive )
3. sega dreamcast

1. Sega Dreamcast
2. Nintendo 64
3. Super Nintendo

1. Super Nintendo
2. Sega Genesis
3. Arcade
If our options included the NES, I'd put it at #1 and bump everything else down.