Wow sorry, I didn't see your reply for some reason T__T the more I play F-Zero, the more I realize why so many racing junkies want to see it revived. It's gut-wrenchingly difficult, but is very rewarding once you master the precision of cornering. Advance Wars is number 2 for being one of the most tactically in-depth turn based games I've ever played. Not sure this counts, but I also wish the Spyro games would return to their original style, like they were on the PS1. Crash Bandicoot is another one I heavily miss as well; Sony seems to favor graphics over actual gameplay nowadays with their first-game titles.
Other than F-Zero and Advance Wars, most of my favorite Nintendo exclusive franchises are very much still alive, like Monster Hunter (formerly a Sony exclusive) and of course, Pokemon. What about you?