Jumpin, really dude.
Yes, All Nintendo's consoles had Interface advancements besides the GC, and I like them, but do you honestly think that I'm a Nintendo fan just because of those advancements? What has Reggie been saying for like a year now? "it's all about the games". Exactly, just because the GC controller didn't cause the next gaming revolution didn't mean that Metroid Prime, Eternal Darkness, Geist, Baten Kaitos, MGS: Twins Snakes, Pikmin, Metroid Prime 2: Echoes, Pikmin 2, Zelda: Wind Waker, F-Zero GX, Zelda: Twilight Princess, Baten Kaitos Origins, Mario Kart: Double Dash, Super Smash Bros: Melee, etc. were bad games, in fact, some of those are the best in their franchise.
And I for one loved the hell out of the GC Controller, I used it for every Wii Game that supported it, bought an adapter to use it as a Classic Controller for Xenoblade and other Wii games, as well as for the WiiU, and I even bought a GC Controller Port to USB adapter so I can use it for PC games, I liked it that much, it's super comfortable and the triggers are just orgasmic.