Oh, and because I'm a jerk who likes statistics and hates feelings:
The purpose of this stagelist is to regulate MK. Though it does, it also benefits ICs quite a bit. All I know is when this was used in Armageddon, there was positive feedback on this and I'm tired of seeing the Apex ruleset, so I wanted to change things up a little bit.
MK's top two counterpicks: Halberd and Delfino
After those two? Norfair, Smashville, Battlefield, Final Destination.
Those are from statistics collected from MLG's entire tournament series with the best players in the world repeatedly flying out. By and large, MK liked the starters.
The more counterpicks there are, the worse MKs perform. This has remained true for the entirety of Brawl.
Let's take Jungle Japes for example.
MK does okay on Jungle Japes, but he can really wreck some characters on JJapes.
G&W, DK, Falco, Wario, and Lucario however do WAY better against him on Japes.
MK does great on Rainbow Cruise.
G&W and Wario do better.
MK does fantastic on Norfair and had a high win %.
Know who did better? Wario and Sonic.
Sure is a good thing you banned Castle Siege, given that
it was one of MK's worst performing stages.
People look at the game from the perspective of their character. They like stages they are good on and hate stages they are bad on. If their character is very limited (see: Falco, Ice Climbers, Olimar) they tend to like flat plat stages while characters with high mobility (Wario, G&W, MK, ROB, etc.) tend to do well on lots of other stages with more unique features and moving parts.
The problem is that moving those "moving parts" and non flat plat stages aren't necessarily best for the mobility characters simply because they do better on average. MK might beat several characters on Rainbow Cruise for example and be seen as a strong MK counterpick, but in reality it's a counterpick AGAINST MK for other characters. It's not that MK does well on the stages, it's that your character naturally sucks on them; when you take it away you simply give MK an advantage against everyone and remove counterpicks against MK.
"Brawl Ruleset (This awesome ruleset was taken from Kel!)"
But I actually enjoyed this rulset, so I'm punished for a ruleset I enjoy.
Enjoyment of a ruleset is irrelevant when it comes to competition. You're essentially running a tournament that is the equivalent of "let's play only on Spear Pillar guys".
Seriously, respect points lost.