Double post but I would really like this post and my previous one to be separated if that's all right with everybody. Gonna get around to commenting on:
To Ed:
I don't really play Sheik anymore so anything I say comes from the Peach player in me.
Match 1
All right, to start things off... Sheik is one of those characters that Peach can chaingrab for a VERY long time... I believe from 0% to 33% and then followed up with ftilt and one more move such as utilt. Peach is going to be fishing for grabs right away because once you are at around 8-10%, you can't be chaingrabbed as long. I would start off by camping with needles and just keeping yourself out of Peach's grab range. Her pivot grab has a deceptively large range.
Another thing that his Peach (and may other Peaches as well) does a LOT is after whiffing a move most notably fair or dsmash, he'll follow up with fsmash and if you're still close, jab. If you watch the games, you'll see he does this a LOT.
If you think he's gonna fair, just stay out of his range... wait for his followup and punish with dacus or something. If you shield fair, Peaches will 95% of the time follow up with their frame 2 jab. Fair to jab is soooo broken. Best thing to do is buffer a grab or hope his timing for jab is off. If Peach follows up fair with a ftilt, it's because the ftilt was buffered.
I noticed with your Sheik, when you get back on stage, you'll always jump airdodge/fair. Peaches like to charge fsmash while the opponent is on the ledge so fair might be the better option. A friend told me just a regular getup back on stage is godly... people usually wait for you to do something else which is why it can be a nice option.
The death at 0:50 was unfortunate

And once again, you're at 0% and he's looking for that grab! Notice that when you did get grabbed, the chaingrab didn't last too long since you took some damage already.
I'm loving your platform cancels. Very fast and effective.
So at 1:43-ish, Peach glidetosses a turnip and grabbed you. It's a pretty common thing Peaches do. They capitalize on your fear of a followup and the opponent will usually be in their shield, vulnerable for a grab. Be wary of that.
1:56-ish, Peach escapes your ftilt string with nair. Peach's nair is very quick, and it's her combo "escaper" in the air which activates on frame 3. Peach's combo escaper on the ground is her frame 2 jab. That's something to keep in mind also.
2:33 - he knows the spacing for dacus. Very good read and reaction time.
3:35 / 3:47 - another thing I noticed he likes to do is to short hop float while the opponent is on the ledge, and bair whenever they get up. I'm not sure on this, but the best way around this is getting up just when Peach's float expires (3 seconds approximately).
Match 2
0:15 - A really good option for Peach when she's got you cornered like that is to short hop dair. It lasts long enough to make spotdodges and rolls ineffective.
0:45 - Those bairs again. (I should start trying that)
1:26 - Grab attempt, yet again
1:50 - Good dacus. You were really quick about it so he wasn't prepared for it.
2:50 - The zdrop turnip to fair regrab is godly against Zelda. It keeps Peach safe while keeping Zelda guessing. I honestly don't know how to get past that besides staying away and using Din's.
Be careful about staying in shield too long. Peach is scary and good at pressuring... but in your shield she's broken. Whenever Peach dairs your shield, try to be quick and punish Peach immediately afterwards when she begins to retreat after the 3rd/4th kick.
I also think Peach is very weak on the ledge. She has very few options. She can ledge hop dair/nair, and you can punish that. Peach can also fair back on stage, with all landing lag cancelled. If Peach starts doing this a LOT, stand at the very edge of the stage because fair's hitboxes don't activate until frame 15 (?) and you'll be able to punish.
This is all I can think up for now...
