Which console would you pick on a lonely island, and is your favorite?

[Kaunisto]

Do we count backwards compatibility? I mean, no point choosing PS1 if you can play the games on PS2 etc.
And do you have to choose just EU/NA/Japan or do we ignore region lock?

If I can ignore regions and have all add-ons, I might go with a MD/Genesis with MS converter, Mega/Sega CD and X32.
That would cover my major favorite games: Wing commander and Monkey Island on Mega CD and Phantasy Star main series. Master System is my biggest personal nostalgia, there's ton of quirky Japanese staff on Mega CD and there'd be Shining Force series, Populous, Dune 2, Lunar 1&2... I'm ready to give up whole modern gaming experience for that.