N64 for me was their best console. There were some incredible games on it. Mario, Pilotwings, the first Waverace, Excitebike 64, Conker's, DK64 (omg that was good) and so on.
They had Rare then, and Rare pushed that console to breaking point. Even shigsy said he never dreamed the N64 would be as capable as it was. It also had some one off truly original games like Blastdozer 64 (or Blast Corps here in the UK).
I loved mine. Had it years.
IMO Nintendo lost their arm when Rare went off to Microsoft and the Stamper twins started winding down. It was also a master stroke to have them on board when the hardware was what they were masters of (SGI).
And who can forget 4 player Goldeneye?