Neutral is dependent on characters but it plays more so what stages least polarize match-ups. FD doesn't polarize to the degrees of which the others stages do in most match-ups.
And Susa we may not have absolute data, but the character boards in ways help fill in the gaps. They give out descriptions of what stages you want to go to and which ones you don't want to go to. At the very least we have theoretical ideas on stages even if we don't have recorded ones, which as is, isn't easy.
Find Fox vs Wolf, surprisingly that isn't a very common match-up, I recall a one time instance of Kain vs Zeton...and that's it. So it's something we have atm.
The point remains while people have different tastes, likes and dislikes, when playing competitively people are still going to reach close repeatable ideas. What's good and what's bad may be disagreeable to points, but when it comes down to it people are not going to prefer it when characters truly abuse their advantages there.
A Falco can say they like Brinstar, but when you look at many match-ups on this stage, it's going to do the exact opposite and actually hinder him.
Sometimes a characters advantages aren't obvious, some people from my state and region told me why Snake actually does well on Rainbow Cruise more than people think. Most people don't play the stage right, and they told me how you should play on it and sure enough Ally and other snakes here we doing just that.
Your guide on how to play the stage isn't far off what I was told there by them.
~
Now about FD, I'm still curious what this stage polarizes exactly, ICs polarize it because they love more flat stages, even on some CPs they don't suck it's only when we talk about Brinstar or Rainbow Cruise is when the small children cry for there mommy. Even on stages like BF or SV the fact the stages are flatter than others is irrelevant, because these stages have a single platform to abuse easily.
Falco doesn't break it in half, it's a good stage but it doesn't change anything that didn't already help in on most stages. it's a good stage for him of course but there are some instances where other stages actually help him more for certain MU's unlike.
Diddy is one I've heard talk about even among BBR member. Stage control is a main component of his game, so lets do a comparison, A = Diddy, B = Opponent
FD: _____D___!________________A____!
Diddy when he's holding a banana and has one on the ground has that much stage control, now SV
SV: __!O_____________A______!
Things change because of the size of the stage, even with a platform your going to pass right over him, even on a platform being above your opponent in this game is still seen as a no no, for the most part. Diddy has far more control over this stage.
Smaller stages help Diddy, lacking platforms also helps make his job easier, but eh size of the stage is very very important.
PS1 is CP'd against Diddy for some characters because of the size and the layout of the transformations, and it works because Diddy has a harder time maintaining stage control. The transformation do help but the length is defiantly a big big help.
DDD: Unless your one of the unlucky characters that suffer from standing regrab or side step syndrome, this isn't that bad of a stage, if bad. Actually if he can even CG this stage is good because you can stage advantage of how he can't really on gimps from CGing you to the ledge anymore and needs his Bthrow to help him out.
FD doesn't force huge match-up swing for the cast to the degrees of which some CP stages do for more match-ups. The stage's layout or what it does affects the match much harder. Even with non air based characters these stages can really scew match-ups to be more unbalanced than on static stages.
Characters do show their power on stages, but is that the character or is that the stage?