For me the order goes Gamecube, N64, Wii, in terms of the consoles that I've owned. Including games (so my view of SNES and NES based on catalogue):
Gamecube
N64
SNES
Wii
NES
The Wii U is IMO up there with N64 and Gamecube, I have a great deal of love for both of those consoles and those top 2 positions jostle constantly. For me the Wii U is currently in joint 2nd, as it feels like a modern gamecube, although by the end of the gen I expect it to take the top position.