I honestly can see both sides of this arguement bcuz like ppl said some of the top tiers characters worst stages are banned. However lots of stages are banned for reasons. like walkoffs someone can camp and grab for a OHKO. Certain stages should be banned like NewPork, Hyrule, any walk off stage. However there are some stages that are banned that quite franqly i don't think effect the outcome to much. And are advantages to lower tier characters(im not sure which one are banned for sure so forgive if i mention one that isn't)
I'll start with Norfair, this stage is stationary, and the postitioning of the platforms is relativly different. but the reason it's banned is bcuz of the lava. Just the floor rising lava doesn't kill you till about 120%. And if you were at 120% you were going to die soon anyway. And if you were staying at the percent for a long time then your obviously better than the person your facing and it won't matter if you lose that stock. It is equally hazardous to you and your opponent, so it doesn't really effect the fighting plus its very predictable. The waves that come from the side don't kill until very high percents like 150's. The big wave can be airdodged. It to me is a different level that requires a different approach bcuz of the invertedness of the platforms. and that all edges are grabbable.
Shodow Moses- Relitivly fair if no infinates were aloud, but it does have a walkoff edge so..
Rainbow Cruise- I'm with ppl on this there is no good reason to why it is banned the enviroment changes so if there is a wall it will eventuallly change and thus constitly change the field. Say it was a DDD vs Ness match, DDD would have advantage on the ship bcuz of the wall, whereas when it gets to the platforms Ness would have more of an Advantage. Thus making it a good counterpick for characters.
Brinstar Melee- the acid no longer kills.
Frigate Orphean- I think this is a counterpick, but if not it isn't hard to jump when the siren goes off, if you can't then you don't have better skill the the person your playing, nuff said.
Corneria- if we would just ban infinates many stages would be allowed.(althought im not sure if ness' camping on the gun works anymore)
These are just some that could be unbanned(just ones that come to my mind) and like i said all this could be ended if light bans on infinates were to take place. As for the neutral stages the most neutral stage is yoshi's island.
Yoshi's island has one platform making projectile spam hard cause then can just jump. It encourages both ground and aerial games. Its one of the only stages that you can DI to the wall and tech the blow. The platform that randomly appears is a savior not a killer.