Why metaknight should not get banned:
I will follow OS's thoughts as to why MK should get banned and explain to you why he should not.
1st: As OS pointed out, Metaknight is the best character in the game.
2nd: He is arguably one of the easiest characters to pickup at pro level(metaknight doesn't make you pro, but he is easy to pickup if you have already a high skill level).
3rd: Due to this, many top players are switching from their mains to metaknight.
4th: This created an army of metaknights placing very high.
I hope everyone agrees with me so far.
Now here is the counterpoint:
Metaknight has an army of top players behind him, while diddy and snake do not have that not because they are totally outclassed, but rather because top players are switching to the BEST character in the game. If you find your main not to be good enough, why not switch for the best character in the game? This makes it so that Diddy and Snake only have a couple of top snake and diddy players, not because they aren't as good, but because top players are not switching to them. They simply have a normal character progression, which means youl only get a few pros with these 2 characters. This happens with every game, most top players who feel are limited by their character will flock to the best one, not the 2nd or 3rd.
This alone makes it so that Metaknight's metagame evolves at a much faster rate than any others, that coupled with the fact that M2K has pretty much taught everyone in NJ how to play MK. On the other hand, you have 2 characters, Snake and Diddy, that took the last 4 nationals over Metaknight, despite not having an army of players behind them. Not having an army of snake/diddys doesn't show that the character sucks, quite the opposite, it means that despite everything MK has going for him, with an army of players, a rapidly evolving metagame and the best tools in the game, he has not won a single national in over 8 months or so. Maybe Metaknight just is not as good as we all thought he was and is simply being picked up because he is the best character in the game? If a hundred pros switched to metaknight, and out of the remaining 20 pros 2 of them placed top 3 even outplacing the best MK, then maybe we have to rethink about whether we should ban MK or not.
Snake and Diddy do not have an army of players behind them, yet win nationals. MK does and yet doesn't win nationals. The best MK even lost by a lot to ADHD, with no other MK coming even close to beating him at pound4.
OS, if your going to say its just 2 players, il tell you that its 2 players out of probably the 8 good snake/diddy players because they don't get lots of people switching to them. I can tell you however that out of the gazillion of MKs out there, only M2K beat allys snake in a bo3 at pound 4 and none beat ADHD's diddy. IMO, statistically speaking, 25% of the top diddy/snake players getting top 3 at pound 4 is better than the 2~% MK getting top 3 at pound 4.