I'm not qualified to vote as I haven't played all the systems nor really kept up to date on all the consoles as I once had. It's just at the point for me where dreams I want to see become reality. The Wii introduced some of the progress necessary to bring this to life and really brought a new gameplay aspect never really seen before but at the same time I can't get past what was once offered.
NES had: Track and Field, Tecmo Football, Baseball Stars, Rad Racer 2 first then maybe RC Pro Am or Excitebike (if had to pick a non-arcade racer), Tecmo World Wrestling, Paperboy, Skyhawk, BlasterMaster, Captain America and the Avengers, Zelda 2, DoubleDragon 2, Mega Man 4, Ninja Gaiden 2, Mario 2, Kirby's Adventure, BattleToads, Tom and Jerry, Tiny Toons, Nightmare on Elm Street, Turtles 2, Return of the Joker, Adventure Island 3, Super C, Star Wars, you name it.
Once the consoles truly reach next gen. as I envisioned when I was a kid thinking about what the future would be then I'll vote that. At the moment though, I'm just going to stick with NES (although SNES I would've picked 20 years ago I'll stick with NES now).
Arcades though featuring some of these NES classics are my favorite though. The memories of being out and about at the Hockey rink, pizza place, rollerblade arena, or arcade out in that bigger town always had a certain flare that was above and beyond what could be captured at home.