Milun's MK1 might be a viable addition, but it also has some issues with spawns from my experience. Milun's MK2 is fine as long as Jorgasm's code to turn off stage hazards is injected. I need to look into it though, I'd really love to be able to keep the logs on the stage (his code removes them along with Pigot and Birdo).
Kongo should be fine to add, but the stage has kind of janky ledges since characters can pass though the bottom and parts of the stage dynamically move based on character position. It's annoying.
Verdict: NO STAGES
#BANNED
Yeah, the spawns on MK1 are a bit weird, but maybe that can be taken care of by always insisting people do neutral port while playing? That might make it better.
I don't think Birdo was a huge issue back when MK2 was legal in Melee. S/he came out slowly and there was a lot of time to adjust to it being on the screen, and catching the eggs was fun (though I guess they were pretty powerful when thrown). Pigot does cause a bit of disruption with his fast floating platform, but I don't think it necessarily breaks gameplay, just an extra thing to think about when he's there. I can see it where some people would ban it completely, as our tolerance of stage hazards as a community have gone down, but it still could work. The only super objectionable thing I see is that the eggs are like guaranteed kill if you catch one and hit someone at 50%+; maybe if it were only guaranteed at like 150%, it could be better (I would be sad to see the eggs gone completely, but that would be okay too).
On Kongo, I agree that passthrough floors are very different, but I kinda miss how that affected the gameplay. It does give advantage to certain characters, but it also can give you some fun situations, too, that we never see anymore since Kongo Jungle 64 and Mute City were banned. Plus, I really like the platform orientation, something we don't have in the current stageset.
I guess my imagining of what the stage ruleset would be is:
Neutrals: Final Destination, Battlefield, Yoshi's Story, Dreamland64, Green Greens
Counter-picks: Yoshi's Story 64, Fourside, Fountain of Dreams, Kongo Jungle (Falls), Mushroom Kingdom 1
Permissive: Pokemon Stadium (w/ Transformations), Mushroom Kingdom 2
The first match in a set would just stage strike with the neutrals (GG replacing FoD, which IMO makes it a more neutral list). The winner of matches then would get 1 Neutral and 1 Counter-pick ban, with the ability to trade one of the bans to ban all Permissive stages.
Though the stage ban ruleset is one reason I want the stages there, the two main reasons are that they (re)introduce interesting and different stage niches, and also they look super fun.
