Just as far as importance, I'd say:
1. NES (brought back gaming and established it as permanent, genre defining software)
2. DS (excellent core games plus pure blue-ocean success)
3. Gameboy (the beginning of portable dominance)
4. Wii (introduced pointer/motion controls, family friendly)
5. N64 (Nintendo meets polygons; also a lesson to Nintendo themselves as to the importance of storage media and 3rd parties)