G&W and Wario info is outdated.
M2K himself told me that Hylian only stated that because M2K said it a while ago. The actual game plan against G&W is to be as campy as possible via random camping, but Fsmash doesn't work that well because they can keep away and if you're predictable Dair or full hop Bair you through it, plus grounded Shuttle Loops only do 9% when FRESH, so it's a pretty mediocre damage racking tool, when it could be played fresh for KO's.
Fsmashing at the ledge does not keep G&W away. They can use the ledge jump which can avoid the hit pretty easily if you're stuck Fsmashing.
Wario's a pretty even match-up. All the opponent has to do is camp, maneuver and find openings. Your job is to protect yourself by abusing range and trying to predict movement. Wario's also good at KO'ing, AT LEAST as good as Meta Knight, likely better. And he can recover well.
Also, I think that...
G&W and Wario are even match-ups,
Kirby and Fox are 6::4 MK's favor,
Sheik is 7::3/6::4 MK's favor,
IC are 8::2 MK's favor,
Samus is 7::3 MK's favor, and
Luigi is 7::3/6::4 MK's favor.
Why Kirby's not actually even. Kirby seriously lacks KO options. Since trying to Fsmash the opponent can get him beat up, his only reliable means of KO'ing is his Bair, which is also Kirby's main means of damage racking, so he has to try to refresh it at very high % to be able to KO. While recovering high, he's in danger of Shuttle Loop and he can get Dair'ed if he attempts to recover low.
Meta Knight also has better KO options, specially at the higher percents. The smashes KO at very good % if not DI'ed, and even while not KO'ing they set-up edgeguard attempts, the edgeguarding can get intense (while Kirby shouldn't be able to do anything to MK's recovery), and grounded Shuttle Loop KO's from 130%.
So now, why Fox isn't that bad. Fastest faller in the game. Interestingly, that makes him good.
Fox can full hop. If MK attempts an attack (fair, grab, ftilt, etc), Fox's fast-falling speed allows him to counter in time with a Dair. Dair can be followed up by Utilt or a grab depending on % or prediction. While MK is in the air, popped up by Utilt or Dthrow, it's easy for Fox to bait an airdodge and hit MK, or hit through their aerials with Nair, air-jumped or other. Fox can also jump into an aerial opponent and Dair - fast-fall to drag them all the way into the ground and follow up.
If the MK player shields as Fox full-hops, the Fox player actually has an air-jump AND the ability to footstool a shielding opponent, more than once! ...Or even fast-fall into either side of the opponent and grab them. A bit of delay means Fox's Dair actually shield pokes, too. Plus, fast-falling air dodges unpredictably, even into possibly Utilt/grab, is fairly safe for Fox thanks again to his falling speed. Short-hop fast-fall Bairs are good also for Fox and do good damage, and it's effective for him to attack opponents on platforms, even easier than it is for the MK opponent. Short-hopping can counter simpler approaches, like the opponent's dash-grab.
Fox's dash is very quick. Dashing and shielding as an approach is very good, since he can shield-grab the opponent, or if they shield, grab before they do, which isn't too hard since Fox's standing grab isn't slow. If there is a bit of damage to be made before MK is in danger of being KO'ed, the blaster helps too, while refreshing moves a bit per shot connected.
Also, Fox KO's fairly well with his strong Usmash from a Dair or, if the opponent messes up, a grab release jump break. If the opponent doesn't allow KO's, Fox can keep racking up damage to later KO with his strong Bair or Dair to Dsmash.
MK's strong points are his range which offers protection against punishment, and superior edgeguarding abilities (which may allow occasional gimps, but at least let him deal damage). Also, Fox has a hit-and-run/counter method of approaching the match, while Meta Knight can keep up pressure to some extent.
MK has an advantage against Fox, but it's not too big.
I don't want to elaborate on the rest of the match-ups. Those are the ones I feel are the most inaccurate. I personally think R.O.B. is 7 to 3 MK's favor, but some people disagree.
for some reason wolf is a good matchup for me in lylat.they should have matchups for certain places
That's a bit too in-deph. We just average from the neutrals. For example Snake and D3 would be 5/5 because Snake wins on BF and D3 wins on FD. He's likely 4.5/5.5 on MK now because he loses on BF and is even on the other two...or that's what's thought at the moment. Counter-picks usually make match-ups half a point or 1 point better anyway.