For me, probably mid-end of the N64 era, I was getting all these great 3rd party PS1 games, but my entire games library for the N64 consisted of nothing but Nintendo or Rare (aside from a few choice titles).
Dark times, still DK64, Mario Tennis, SSB, Super Mario 64, Banjo, star fox, mario party, Golden Eye, Perfect Dark kept me entertained. Bit weird, but I probably spent more time playing SSB and Mario Tennis then my entire PS1 collection sans FF8, but the PS1 collection had many many many more games. Weird, but that's a pretty big indicator of the longevity of Nintendo's games.
Next pick would have been the current situation, but this generation hasn't ended yet, so we won't know how much love the Wii gets until it's all over.







