Reading through this thread has really made me curious about how some of you determine legal stages.
Here is what I see:
Halberd - should be banned, due to 'unpredictable' stage hazards that are apparently unavoidable, even though the stage quite literally tells you when it's about to make one appear, and the blast zones give characters an advantage (even though most characters can kill quite well vertically and those that can't are capable of banning halberd because it's bad for their MU). It was legal in Brawl has survived its whole competitive scene so what has it done to make you think it should be banned?
Skyloft: should be legal because???? Seriously I don't understand the arguments for the stage. The stage hazards for Skyloft actually mess with the gameplay.
Here's what an average match on Skyloft looks like, and it didn't even include every hazard that you can come across. The likelyhood of no one getting hit by an unexpected stage hazard is actually very high, and if you go to Skyloft, you're probably expecting your opponent to 1) get meteored by the stage when knocked into the corner, 2) get spiked by the stage when knocked horizontally (which can save you), 3) bounce off a one of the many walls that the stage offers, 4) maybe get killed by a waterfall that is just barely below the ledge on one transformation, nullifying a second jump
and an up-b 5) get damaged by the floor on when landing on the stage mid-transformation. Sure, it has some interesting transformations, but those are all nullified by the fact that the stage can kill (or save) you if you're conveniently knocked off stage at a random moment.
Wuhu Island: should be legal because we banned it too early. Wuhu is, I'll grant you, an interesting stage. I don't really see why it should be banned, but I also don't see why it should be legal. Several of the transformations are very quirky in nature though (which doesn't mean it's inherently banned). The Volcano transformation, for instance, is an almost required campout if you're both on opposite sides, as many characters literally cannot approach without having to face a ledge guarding situation. The boat as well has its faults, the water is similar to Jungle Japes', where if you fall below the platform on the right side by even a little, you're probably dead. This transformation also removes most semblances of edge guarding, as most people with any aerial endlag will decide not to go offstage. I personally don't have a preference for this stage, though. So if it's banned, it's banned. If it's legal, it's legal. Even though it has its faults I don't see any huge issues with it.
Mario Circuit: Should be legal because we want more stages? I guess? See my reasons for not liking Skyloft. Getting knocked offstage at an inconvenient time (more times than Skyloft, mind you) and hitting part of the stage does a significant amount of damage and can kill you. The fact that you can actually get trapped
in the actual stage should be more than enough of a reason to ban it.
Pokemon Stadium 2: Shouldn't be legal because some players can't adapt. Honestly, I like PS2. The stage doesn't kill you, there are no camp-forcing transformations, and the players are forced to fight in neat, different situations. Every character gets a sliding upsmash on the ice transformation, Every character has to rely on their aerial mobility during the wind portion, and edge guarding/stage control is more prominent in the metal transformation. In other words, some of the most exciting things about Smash 4,
tripled. I don't understand the hate for PS2 from people that aren't scrubs. If you can't adapt to different situations,
why are you playing competitive Smash? At the very least, I think this stage should be tested by TOs at a few tournaments, just to see if it makes matches more hype or not.
Anyway, those are my two cents. I do want to see strong arguments for the aforementioned stages that don't make any sense to me, though. Why do you think Skyloft should be legal? Why do you think Circuit should be legal?
Heck, if you present a solid argument for Great Cave Offensive I might even consider playing it competitively.