It'd be nice to have Snake mainers discuss to but we kind of want to move on with these matchups. Like I posted in the original post, if you a problem with previously arrived at conclusions or results, there is NO problem with mentoining it in a later week even if that character is already discussed. The weekly thing is more of a guideline/focus to get the bulk of things done per character, and not some restrictive rule. If snake mainers later see this and have things to add they can be free to do so, but let's move on to Metaknight.
As for Metaknight.
60-40 Peach.
No, I'm not crazy. I have loads and loads of experience in this matchup. Metaknight is the character I practice against the most with an amazing Metaknight player named Edge. The best in Cali I'd say easily.
The matchup is in Peach's favor if Peach knows the matchup real well. Even if Meta does know it, there is less he can do. In fact, once Metaknight realizes what Peach can do, the Meta backs off, plays more cautious, and it really takes away from the aggressive rush Meta is good at.
Here's why.
-Down Air out prioritizes shuttle loop. You should not get gimped by this move. Just down air when you feel it coming. If he didn't use it, he can't punish your down air because you can air dodge once your down air is complete. That means he has nearly ZERO window to get you with that move while you are above by the time you land. (You want to fast fall your down airs)
-His foward air does only 7% at full power when all hits connect. As annoying and as much priority as it has, this move does nothing. When you hit him with a forward air at full power, in contrast it does like 25 percent or something arouond there. Meta is working much harder to rack up damage, just because you take more hits does not mean you are not winning the match.
-His smashes are not that strong if you can DI them properly. Metaknight gimps people who are not used to him because they don't see his downsmash coming and it kills them because it sends at a nasty angle and kills pretty early. HOWEVER, because you float, you should be ready to get by these and always be ready to DI when you land, just in case he pulls it out. It's a big advantage and the fact that Peach can float really negates the surprise power this move has. You can survive it to god awful high percentages if you DI fully and properly upwards. Smash it, too. C stick DI. Try everything. You live long time.
-Turnips bug him, so he really cannot wait you out or play defensively against you. He can only rush.
-Peach has several moves to combat whorenado. I suggest rolling back before initiating any of these if he is close to you when starting up the nado. These moves are your toad, forward smash, and up tilt. If he is RIGHT in front of you when he does it, forward tilt will knock him out of it. Learn this reflex.
-Up air can kill metaknight early as a *****. and if spaces properly, he cannot down air you through it. This is a good surprise move and you will ALWAYS have it saved it up at max power because nobody ever uses it. Wait til meta is at 95% and use it. If you can nail it he will die off the top.
-Peach's weakness of never killing dissapears against Meta. Forward tilt even kills him at 130% range at max power. Keep that in mind.
-You can tech his grabs because Peach is at the right floaty/heaviness level. If he grabs to forward throw, tech behind him. He should not be able to follow up.
At a high level I think this matchup is in Peach's favor 60-40. I used to think it was 20-80 in meta's favor when I first tried the matchup for a few weeks, but after knowing it well, I'm convinced Peach's got this and is one of the best characters to use in the game against meta.