I like Samus a lot in Melee. I can't stand Zero Suit Samus so when they forced me to use her after using the final smash in Brawl I gave her up, though I still use her in Melee. Eventually I took up Ness and I've been getting pretty good with him too, and he's usually who I play as in Brawl. So it's a tossup between those two.