I can't stand Gamecube. I think they're too small, flimsy, and have no power. The graphics in their games really aren't that impressive. The controllers are flimsy at best. I've heard tons of complaints about how the buttons sometimes don't pop back out when you push them.
I hate their choice of games. I hate the fact that all their in house games suck ass, but they nab Star Wars: Bounty Hunters as one of their only out of house developed titles. Fucking bastards, why couldn't you just have stayed dead. Face it, the N64 was a lackluster console. Aside from Goldeneye, Mario Kart 64, and Zelda, it basically sucked ass.
Most of all, I hate the amount of rabid Nintendo fanboys who think that Nintendo can do no wrong. Face it. From a hardware standpoint, the Gamecube sucks. Games are really nothing special, albeit focused more on younger children than the adult gaming population. The controllers are awful. And it doesn't play DVDs. At all. Ever. You have to shell out $200 more for the Panasonic version that plays DVDs. But, you can only get that in Japan anyways.
So in conclusion, I hope to see Nintendo fail and have their few mediocre games be distributed to other consoles that would make them about a billion times better than the Gamecube ever could.