Thanks, Tombo. Let's start with Fox and Falco. Not sure what I can do to handle their pressure, and when I do get a hit, I can't capitalize properly. Also, stage counterpick suggestions would definitely help (more so for Falco).
Fox n Flaco. Gotcha.
A good way to deal with pressure from both is to know what they want.
FOX:
Go for Grabs and punish him as much as possible with Bairs
After you hit 70%~ All foxes want either an Upthrow to Uair or an Upsmash. One major approach at that point is a drillshine Upsmash. Dealing with this, you dash forwards or eggroll for a split second then immediately exit. In these cases, Fox may try to drillshine or SourNair. When he jumps, dash back, and pivot grab. You'll get the grab either for free or for grab armor damage. If you get hit by drill, CC it and shield buffer. The Fox will either do what's automatic and shine to upsmash, or shine to grab or just grab. Shine to Upsmash you can shield and punish withe either a grab or an OoS Nair. If he goes for grab, It's very likely that you will Grab Parry it, free punish of your choice. If he goes for shine grab, this is when it gets tricky. you can roll right after the shine, but ONLY ROLL PAST him, not away, because if you do that guessing a grab and he wants an Upsmash, you die. Upthrow to Uair won't kill you if you mash Jump because armor is OP
Options for fighting fox, Crouch canceling will give you a huge edge. Upthrow will lead to a free uptilt until 100%~(with correct DI) and Upthrow is a chaingrab on Fox (Upthrow, Dash back, immediate pivot grab). Simple and safe thing to do is to Upsmash after an Upthrow because it's completely free until 100%~.
Edge guarding Fox:
Nair is his bane.
If he wants to phantom to stage, shorthop/DJC float Nair.
If he wants to phantom to ledge, run off Rising Nair
If he wants to Firefox to stage or ledge, Intercept with a Rising Nair.
In all of these scenarios you want to hit him with the tip of your boot because it's disjointed. (IMPORTANT KNOWLEDGE)
if Fox is over 50%~ any of these can kill.
FALCO:
Yes, Lasers suck, but the main thing you want a Falco to do is approach so you can punish. Dair on Shield to Shine is tough, but you can shield the shine and roll away or past them or OoS Nair after it hits (very little Falcos will multishine every time they Dair your shield, it's not in their muscle memory to have to do so). Falco wants to Fsmash or Dsmash you for kill or he wants to Dair you, but Armor will let you laugh at him. Alot of Falcos will Crouch before doing either of those moves because they want to CC to Cstick(or possibly shine). If you see this, you can safely eggroll at him, but either go through him and beyond or stop just short of his Fsmash range. If you pick the first option, make sure this is a medium to long range roll, because IF you choose to go through him, he may stop you with the predicted Fsmash. In this case, you'll clank and you can: Dash back and pivot grab, go for Jabs, Dtilt him away, or DJC Nair. If you want the second option, it's a free Forwardsmash, DownSmash, Grab, etc.
I'm sure you all have seen Falcos do the whole crouch stance waiting to CC and punish, so this is a great thing to take advantage of. other than eggroll, you can space a dashgrab so you catch him in his Fsmash and either get the grab for free or take damage on grab armor. You can dash forwards, wavedash back after the bait, and get a free grab or fair or Dair or anything really.
Fighting:
Eggroll is unsafe unless you roll off a platform, with this you can be creative but make sure not to be predictable. (remember the crouch stance)
Bairs are huge in this matchup as well as grabs. Downthrow to Utilt is Guaranteed at any rational percent (same with Upsmash).
Dtilt a Falco while he's off-stage and he's auto-dead.
Falco's UpB recovery has no initial hitboxes like Fox's, so if you are close enough and he's using it to recover, Fastfall to him and Rising Nair.
Yall are so upset about Falco Shinespikes, WHY are you recovering so low?
Recover med or High or fake a recovery mid and go for ledge. If you get that low and you KNOW he's gunna go for it, eggroll in place. This way, he knocks you up and you get to recover (or he gets a jumpcancel Dair, but that will be death for him too).
If you're low enough and you're concerned about a shinespike, Jump away from the stage and get back with eggroll to airdodge.
Another Option if he's trying to meet you right when you jump is to Rising Uair as a jump. If he wins that, you get knocked up. If you win it, you get back and you can Nair to reverse the situation.
Stages!
Personally, I HATE Yoshi's Island Brawl, always an instaban from me
other than that..... these are listed best to worst IMO
(Assume that I've already banned Yoshi's Island Brawl)
FOX:
Preferred Picks:
FD (best stage for the MU IMO)
FoD
Dracs Castle (if available)
Warioware
GreenHillZone
Yoshi's
Preferred Bans:
Smashville
Battlefield
Skyworld
Dreamland
Pokemon stadium 1
FALCO:
Preferred Picks:
DreamLand
Warioware
Pokemon Stadium 2
Drac's Castle
Smashville
Preferred Bans:
Yoshi's
FoD
Lylat
I personally believe that Warioware is Yoshi's best stage (or maybe it's just my favorite). The only matchup I stay away from it for is Marth.
I hope This Helped everyone!
If you have any questions or specifics on what I do in certain situations in these Matchups, don't hesitate to ask!