Lylat Cruise:
As per discussion over Lylat Cruise's legality as a neutral/ starter stage:
Has it been discussed in depth over what characters have a clear disadvantage on this stage and why?
Personally, I see three things with this stage that could possibly present a problem or two, if any, to the entire cast that could hinder its placement as a starter:
1. Tilting of the stage makes planking difficult due to possible SD's under the stage.
2. Background is distracting, especially during the asteroid sequence.
3. Stage is relatively small width wise, with Battlefield size? boundaries.
Granted, the stage size may give a slight disadvantage to characters that base their game around projectiles (Samus?) but none more so then Battlefield, or Yoshi's Island.
The tilting of the stage is not something I believe should really be an excuse for making it a counter-pick, as it no more hinders certain characters recoveries then the lip does on FD. You learn how to deal with it, that's all. The platforms are low enough to the ground that almost every character can use for sharking under, so I don't think that could a reason for placing it as a CP either.
If I'm really missing anything that gives any characters specific advantages on it, by all means point them out, but until then, I stand by that Lylat should be a starter stage, or should be given the option of being a starter.
Luigi's Mansion:
With 1vs1's, this stage is quite, quite large. Heavies, like Snake, DDD, and ROB, can live to insane %'s due to the high ceiling. ROB also has a clear advantage with camping due to his laser not being hindered by the pillars. Snakes's C-4 is almost nigh impossible to see on the floor, just like on Japes, if it's placed on the second floor. The cave of life on the bottom floor is also an issue, but every character can take advantage of that, as long as they can control the space. All characters can take advantage of using the pillars to extend hitboxes time out, since they act like you're hitting a character's shield, any character can take advantage of that. Other then the sheer size of the stage, and the cave of life that any character can take advantage of, I think Luigi's Mansion should be a legitimate CP, or possible ban, depending on the tournament organizer. There's really not too many character specific advantages on the stage, unless you count Lucario's Extreme Awesome AT, or the above forementioned details with ROB and Snake. Personally I'm kind of biased towards this stage being legal for teams, since it's size is like a two floor FD with larger boundaries, but 1vs1's, I think it should be legal/ up to the tourny organizer to be a legit CP.
:Edit: Also, as towards Green Greens, I really don't see this stage being much worse then Pictochat, although it certainly can be more random. Green Greens does have much smaller boundaries, however, which can lead to some very early KO's. The stage traps can be used much in the same way Picto's can be, thus, I think the stage leads to some very interesting techniques by players. I really would enjoy seeing this stage as a counterpick, vs. being banned outright, considering CP'ing it assures that the person picking the stage knows of its traps, and that they can be used against you much the same way that you can use them against your opponent.