I have a lot but I go in order 1. Toon Link 2. Lucas 3. Pit 4. Dark Pit 5. Luigi (in the work) Luigi is OP like all the characters you use and how you use them Toon Link is my main character and always will be.
SSB4 1. Pacman 2. Diddy Kong 3. Rosalina & Luma 4. Jigglypuff 5. Zelda SSBB 1. Pikachu 2. Kirby 3. Yoshi 4. Jigglypuff 5. Lucas
Oh god, that Pacman. I soooo wanna play you right now. I don't really have a main, but off the top of my head, the ones I have a very good time with are Lucario, Pikachu, Dr. Mario, Villager (yes, we all need the time when we play Smash for fun), Game & Watch, and Shulk. The ones I say I have better chances of winning are Greninja, Robin, Kirby, Sheik, or Mewtwo. As for Brawl, I'd use Olimar, Wario, Pit, Game & Watch or Pikachu
Brawl: Kirby, Link, Pikachu, Mr Game and Watch, Meta knight and Yoshi SSB4: Kirby, Little Mac, Pac Man, Link, Ryu and Toon Link
NESS Ness mains are usually very good at Ness, but only Ness. He plays so drastically differently from most other characters, so Ness mains tend to suck at every single other character in the game. It's a trend that I've found occurs and which others seem to agree upon.