I love Meta. I don't care what anyone says.He's not broken, nor unbalanced, just early on he's the easiest to play well as. You try to play captain falcon at a tournament and do well against a Metaknight. It's tough. The reason isn't because metaknight is buff, OP, or broken. It's because he is designed to be easy to play. Characters, in my experience, that I have had problems with...
Marth
Ike
Rob
Olimar
Wario
Fox
Falco
Wolf
Link
Toon Link
Snake
Pit
Mind you, the Fox/Falco/Wolf may not seem that great against him, but those are mains of my friends, so they play them very well. Attacks that have the ability to stop any of his specials...
Falco
Lazer, fsmash, dair
Fox
dair, bup
Wolf
Lazer, fsmash, dair, bside, bup
Marth
Sword in any direction, counter, IE ANYTHING CAN GO THROUGH MK'S specials
Rob
Lazer, top, all smashes, all aerial smashes, EVEN BEEN GRABBED OUT OF TORNADO.
Olimar
All smashes, throwing a purple pikmin with bside, and I have been GRABBED OUT OF TORNADO AS WELL BY OLIMAR.
Link/Toon Link/Pit
All projectiles make them unapproachable, and all of their smashes have the ability to womp the timing of metaknight's approach and smashes.
Snake
Projectiles, ledgeguarding, needs to be at 180% before I can even think of killing him with a smash, etc...
Not broken. If you are playing against an MK who beats you all the time, get over it. Learn a way around. Counter-picking is very important. If a friend always plays MK, stop playing C.Falcon/D3/P.Trainer/etc... against him.
Jeez, I did it again.