heh, I think it's hilarious how people are always saying "graphics aren't that important" and then saying "I prefer GCN to PS2 cuz of graphics." So, you're buying a PS3 then, right? Or are you? I think you're just trying to find a new way to say "I prefer GCN cuz it's NINTENDO."
Honestly, although I despised it at first, I've come to love my PS2 more than any other console. The game selection is a lot better than the GCN, which is basically standing on the series that already have a fanbase and not really breaking ANY ground with new games, which really seems to have been Nintendo's basic strategy for quite awhile. And sadly, it's been working. PS2 is great, especially for RPGs and Action/Adventure games. And if racing/sports games are your thing (they're not mine, although Burnout 3 is pretty awesome), then PS2 is great as well. However, if you love playing games with the words Metroid, Zelda, Mario, or Tales in the title, then you probably prefer GCN. But I'm the kind of guy who prefers Devil May Cry, Xenosaga, God of War, and the abundant list of PS1 titles--many of which I missed the first time around (Breath of Fire, Xenogears, Final Fantasy Tactics, etc.).
In the end it comes down to personal preference, and at a forum composed mostly of Nintendo fans (it is a Zelda forum after all), most people are going to prefer a Nintendo console, because they're playing the same games they've been playing since they were children, and they like that. New games be damned, if the word "Zelda" is in the title, 95% of this forum is going to buy it.