My meta-tiers, from compiling sentiment across posts and threads, along with my own opinion of course
TOP: Widely acknowledged to have strong movesets with solid approach and camp options
Marth - Fair, counter, tip power
Toon Link - Projectile game, fast and powerful enough
Snake - Diverse and strong moves, hard to kill, great specials
Meta-Knight - Best 'ticking' character, will def win matches
HIGH: Solid characters, top potential and no lower than upper mid
Falco - Probably best spacie, lasers, combos
Captain Olimar - Projectile game, fast and long range, gimpable and a little lacking in power
Pit - Projectile, good priority and range
Diddy Kong - Banana game for approach and camp, good edgeguard
Wolf - Projectile, fsmash, little slow
R.O.B. - Projectile, good edgeguard, dsmash
Mr. Game and Watch - Solid all around moves with multiple kill moves
MUDDLED-MIDDLE: Some of them could move up, some may move down. But these seem to be the middle 50% to me. In relative order on potential to move up.
Lucas
Ice Climbers
Zelda
Fox
King Dedede
Zero Suit Samus
Lucario
Squirtle
Ivysaur
Sheik
Pikachu
Samus
Mario
Ike
Charizard
Peach
Kirby
Sonic
AVERAGE AT BEST: These may not be the worst but have little chance of making the top third.
Donkey Kong
Bowser
Ness
Wario
Jigglypuff
Link
Yoshi
Ganondorf
Captain Falcon