First off, yay Rhapsody! Second, boo anything involving Steve Jobs!
On to business, then. I didn't mention in the other topic that the chaingrab on Fox and Falco is rather hard to do one you get them to around 30%. It becomes impossible at that time to grab them without moving first even if they don't DI it This causes problems even for me at this point, because you have to dash one direction, then the other, really fast, and pivot the grab (grab during the neutral frame of the dash turn-around, in case you didn't know...) I have issues doing this, for some reason. Also, when the Fox player is at 70-90% or thereabouts (I can't check now, since I'm at work) just uthrow him. Because of his falling speed, this pretty much guarantees an Fsmash, and usually a tipper, if you can read his DI well enough. This is a HUGE improvement on the dthrow or fthrow to Fsmash, because they can't just tech out of range. This doesn't work as well on stages with platforms, naturally, but since you were playing on Final Destination, it's applicable.
Edgeguarding - I can't suggest using aerial edgeguarding as your main technique. Marth is a lot more open in the air, and he's not nearly as frightening, since he only has 1 move that's any good at KO'ing at all (dair). You can go for the spike in friendlies, if you want, but unless you're really good at it, you should probably stick with a safer technique in important matches. Against spacies, at least, if they're above the platform, get as close to the edge as you can. This will allow you to catch them trying to sweetspot with Fsmash, and if they don't try to sweetspot, you can still Fsmash them after a wavedash. Most people won't try to hit you with their recovery, but if they do, just stay on your toes and use counter or dodge or something, it's not a very hard move to get away from. If they're below or even with the ledge, I just hang on the edge and jump up with a nair or a wavedash->grab when they land on the platform. Just... wait for the person to come to you. They have to get back on the platform sometime, after all.
Other observations- I'm hoping the second hit of the blade dance you did in the beginning while stalling was a mistake, because that can get you killed pretty easily. You could have killed the Fox by doing an extra fair during your double-jump when you knocked him off in the beginning, and again around 1:50. You got the uthrow->smash idea right at the end, why didn't you do it earlier in the match? Some of your short-hop double fair attempts would have been much better just as shffl'd fairs - it can be relatively difficult to land that first fair when you're right next to someone, especially against a short character like Mario or Fox, and the shffl'd one leads into grabs easier if you tip it. The chaingrab doesn't work at %s higher than 40, you have to go for an utilt or, if they DI away, I like to try to shffl an uair (someday I'll get that down!) You could stand to use more fairs, as well, and make sure to fast-fall them! That's a really good way to set up grab->smash finishes. I always tell people to not hang around so much in the air, and this is compounded many times against fox. You do NOT want to eat unnecessary uairs from Fox, they're retardedly deadly. That's all I have for now, might be more to come later.
. I SHed as much as I could, I know I fumbled a few of them. I only suicided once, as I mentioned in the post.