Well, Id definitely say my fav characters are Roy and Marth. Runner up would be Samus. She has awesome attacks and is one of my fav nintendo characters. I still have a copy of the original Metroid (damn is it hard!)
BTW, ppl, enuf with the console wars, please. We are all entitled to an opinion in our gaming. Lets keep this place a community!
She rocks in the N64 version, bet she does in the GCN version too. As for that whole debaucle on which console is better I think it would have to be the 3DO system!!!!Er wait it was REALLY expensive and had lousy games. In all honesty the whole console fanboy thing got old a while ago(Nothing worse than listening to diehard fanboys whine about which system they like:S )
On the N64 version, I played Capt. Falcon almost exclusively, followed by Samus.
On the GC, I like playing Doc Mario, Mewtwo, Capt. Falcon, Zelda/Sheik, Samus, the Ice Climbers, Bowser, Young Link, Roy, Peach, and Ganondorf. I'm sort of stuck as to say which is my fave... I use Cap a lot, but I'll pick a character based more on the competition that I'm likely to face than anything else.
Tip: If you play as Mewtwo, use weapons like the star rod, beam sword, and parasol as much as possible. MT is one of the nastiest weapons-weilders in the game, which surprised me.