Starter:
Battlefield
Final Destination
Smashville
Miiverse
Dreamland
Already off to a bad start. This list very obviously favors characters that use platforms to their advantage, it's not even funny. If a character who loves platforms (let's say, Shulk) is against a character who enjoys flat, open areas (let's go with Olimar) then Shulk is going to get a major advantage right away. Shulk would of course ban FD and Smashville, and Olimar would probably ban Miiverse and BF, which would bring them to Dreamland, which still heavily favors Shulk. Honestly, this starter list is even
worse than a 3-stage starter, where they would end up on a slightly more even Smashville. (though SV would still favor Olimar)
I firmly believe in 5 starters over 3
One thing I can agree with, at least. (though, with your starter list this isn't even necessarily the case)
7 feels tedious and usually takes a while to strike (Smashers don't know how to count 1-2-2-1.
First of all, 7 stage starter doesn't even work. You need 4x+1, so the next step up from 5 would be 9. Second, if 7 is tedious, you're either very impatient or take way too long to strike. I've done mini-tourneys in PM with 21 stages on FLSS, and the longest striking ever took was about 2 minutes or so. And people who can't keep track of strike counts should just know better, it's their fault, not the stage lists'.
Reasoning for Miiverse & Dreamland Legality:
https://www.youtube.com/watch?v=aD9zG524I24
tldw;
Dreamland has taller and shorter platforms than both MV and BF
Miiverse platforms are longer than BF and DL
Dreamland's top platform is longer than the lower two
Miiverse's base platform is a bit longer than BF's
The bottoms of each stages effects some character's recovery options.
This isn't exactly a reason to make them all separate starters. They're still drastically similar enough that they still all favor the same set of characters.
Reasoning for Halberd Banning:
The Hangar mode has walkoffs, and the Deck has Stage Hazards. Halbard is currently the only EVO legal stage that has stage hazards. It doesn't matter to me that it's telegraphed, it's still another force interfering with the players' neutral game that would better off being not present..
Lolwut? The walk-off? It's there for 5 seconds at the beginning of the match and is never seen again. If someone kills you off that walk-off, you got outplayed. Really, really, badly outplayed. I will admit that the hazards disrupt gameplay a bit (stupid claw) and the laser can lead to some overpowered strategies, but both are easily avoidable and aren't bannable. Also, Halberd is the only legal stage at EVO just by sheer happening; it's really the only good stage that even HAS hazards (dependant on what you consider "hazards" - Skyloft, Wuhu and PS2 all have pseudo-hazards) The fact that it's the only one doesn't really mean anything.
Reasoning for Castle Siege Banning:
I'd be down with this stage if it wasn't for the Throne Room. It has walkoffs, statues that hinder projectiles and increase duration of hurtboxes, and is so big that it can promote camping. I understand people can counterpick here against projectile users, but good projectile users probably always ban this stage already.
Again, the walkoff isn't much of an issue. When it transforms the walkoff camper/abuser will be FORCED to return to center stage or face an edgeguard situation, both of which will put them in a bad position if the opponent is already center-stage. It can be camped, but, once again, camping is a useless tactic on a transforming sage. Also, if projectile users just ban it anyway, then why would harming projectile users be a bannable offense? It's just a reason for counterpicking it.
Kongo Jungle promotes camping and has a barrel that turns you into a hurtbox. I could maybe see Kongo Jungle for Team Battles. Maybe.
Mario Circuit has jank such as sections containing ceilings above, or a wall to the right. Also, walkoffs.
Wuhu Island has walkoffs, the boat section that can kill if you touch the water in front while it's driving, and promotes camping during certain sections.
Pokemon Stadium 2 transformations just change the match completely. Ground might be tolerable, but conveyer belts, skidding, and flying would just make a game here silly.
Skyloft had promise, but sadly has walk offs and a waterfall section that can trap a player into death.
Kalos Pokemon League has a section that turns you into metal. 'nuff said.
Windy Hill Zone? I had no idea people actually wanted this stage legal. Way too big, promotes camping, springs can kill you.
Stop saying that a stage "promotes camping." You can camp on
Battlefield for s***'s sake, it's not even that hard.
I've camped out on Battlefield before. Should we ban Battlefield now? Of course not. You can literally camp just about anywhere, it's not a stage-specific issue. It's exemplified on some stages, for sure, but it's not a 100% bannable reason, and KJ64' camping isn't quite strong enough to meet that level. If we banned every stage where you could camp, we'd have: (to quote d1) "No stages to play on dog!" The barrel turning you into a hitbox is not an issue either - it puts you into a lot of lag and you can be easily punished for it. The only real issue with KJ64 is barrel camping, which is completely match-up specific anyway.
I don't like Mario Circuit mostly due to lack of specificity. It's very difficult to make out where and when the road is on screen, leading to arbitrary saves. Other than that, it's mostly okay, but I'd say that's enough of an issue to ban. Testing it more may be good, however.
Wuhu Island's sheer size makes the walkoffs even
less of an issue than on other stages, where it's not much of one anyway. Again,
temporary. The boat is not a problem. Recover further away from it. Also, it's very possible to escape the water before touching the boat, in fact it's quite easy. And again, temporary transformations actually dispromote camping.
I find PS2 very good but I can understand why someone would be against it. Ground is really good, Ice is nice (wasn't in Brawl because of tripping) and can give you sliding smashes (pseudo-DACUS!) which leads to special strategies (not degenerative ones, just different.) Conveyor belts and wind are the iffy ones. I agree wind isn't that good, but nobody likes Rock in PS1, but it's still a popular stage, no? Conveyor belts have been slowed down from Brawl and are interesting because they focus combat on center-stage, which gives advantage to a better neutral game. Really, PS2's main thing is that it is a good counterpick for primarily aerial fighters, nothing particularly degenerative or cheap there.
Skyloft: again, temporary walkoffs, bad position during transformations, I've said it already, it still applies. The waterfalls will only trap you if get spiked or footstooled and have a sucky recovery, in which case you probably would have died anyway.
Kalos I'm against. The metal is a bit much (whoever happens to be there gets an advantage) and Registeel leves almost no safe areas. If Steel didn't exist I
might consider it.
Windy Hill, while large, is all horizontal, which can't be camped as well as vertical size. The dip and the gravity mechanics also make projectile camping hard there. The springs make you recover high, and if you are a good player they will much more often save you than kill you. I'm iffy on WHZ anyway.
Reasoning why I'm against walk offs or "tldr;":
You probably noticed a theme with the previous bannings. I'm against walk offs. It completely erases a segment of the game that Smash is known for: recovery. I know it's only for like 12 seconds during a section of the stage, but why should we allow the game to completely change for those 12 seconds, when thanks to the newest patch, we already have 8 (9 including Omega) perfectly good stages to play on? I never really understood the desire to increase the stage list, Melee has just 6 stages and they seem perfectly happy with it. Not saying this game is Melee, but you get what I mean. I want my 2 stage bans to actually mean something when I use them, not to be automatically used against stages with gimmicks every single time, and I'm sure other people do as well. Please post your thoughts, I'm genuinely curious what people think of this proposed stage list.
Final Destination removes platform play. Lylat dispromotes offstage play. See what I'm getting at? Removing a major aspect isn't inherently bad it makes a stage unique. In fact, walkoffs are even less major than those two because all these walkoffs are temporary, where FD removes platform play for the entire match.
People (like myself) who want to increase stage lists would obviously want more stage bans as well. You wouldn't "waste" your bans when you would get more anyway. Also, I personally want to increase the stage list to increase diversity and possibility. Sure, people will barely ever and up on PS2 anyway, but for those few matchups where it's the best stage? I want the list to be ready, and have the most fair stage for that MU.
tl;dr No offense, but I think your stage list is garbage. It heavily favors platform users and you use weak arguments for your stage bans.