I constantly have this argument with some of my fellow gamers. Let me start out with some positives about Super Smash Bros. Melee for Gamecube.
-Beautiful Graphics
-Abundance of Characters
-Ear pleasing music and sound effects
But. It doesn't hold a candle in terms of control for the N64 version. Something about the controls in the Gamecube version just seem.... Off. The timing is different, and it seems like the placement of things in the enivronment that can hurt your performance just seem more random than the N64 version.
Long story short, I like the N64 version better. Which do you like better?