The thread was on the subject of Gamecube games. I don't think this PS3/360 argument is strictly relevant to the thread or even the nintendo section of the forum, and may be better continued on an appropriate thread elsewhere. Brr! Harumph! Get off my lawn you pesky kids! etc etc.
As for Gamecube games, my favorites have been the following (and would recommend to anyone regardless of taste):
-Windwaker
-Twilight princess
-Paper Mario (this above all others prolly)
-Rogue Leader
Other suggestions (all really if you want 1p games):
-Eternal darkness (brilliantly thought out, but nonetheless an alone in the dark type horror, so not to everyones tastes)
-Metroids (much going back, requires much effort, but rewarding)
-Mario Sunshine (good but huge let down if you liked mario 64)
-Rebel Strike (I liked, not for everyone)
Multiplayer:
-smash bros (epic, but only if those playing all play it a lot)
-Mario parties (if you like that kind of thing, very slow going, but everyone can play)
-Warioware (manic but underdeveloped)
-Monkeyball 2 (awesome)
-Soul Calibre II - 2Player, makes up for the loss of Tekken on the PS, and the associated years that it washed away
Thats all I can think of for now.