Hello everyone. I'm M3D, the staff member and moderator in charge of the Smash Back Room. I'm here to dispel the myth and rumors about how a tier list is made:
First of all, a tier list cannot be made immediately after a game comes out because developing an accurate list requires that tournaments and serious competitive play are taken into account. So when Brawl comes out, don't expect an official tier list for a little while. Just pick your favorite characters, play, compete, have fun and try to win in tournaments and in online play.
That said, here's how we create a tier list:
1. First, a game like Melee or Brawl is released and people immdiately begin discussing things on the forums. Tricks, combos and tactics are spread via the internet and by playing with friends and eventually major tournaments happen all over the country. The top players demonstrate their tricks and show off how effective (or ineffective, as the case may be) their favorite character is. Other people take what they learn from those tournaments and important matches, copy them, counter them and go back for more matches. Through this process, the "metagame" is formed. This idea of a metagame really means "how the game is commonly played using optimal tactics in a competitive environment." This helps us to understand the basics of what characters are good, which ones are bad and how various characters do against the rest of the cast.
2. All of this information, including tournament results, is collected by members of the Smash Back Room. It is analyzed and discussed over and over again, as the members begin to formulate ideas of which characters are the most effective and which ones struggle to compete at a high level of play. If there are any inconsistencies in the information or if there are questions about how certain moves or stages work, members of the SBR will test it repeatedly until the truth is found. For instance, when the IC infinite grab combos were first being discovered, we had players test a variety of methods of escape and methods to execute the grabs to determine exactly how it would work and if it would be a broken method of competition. All of this information is kept in mind as we all continue to compete and develop the metagame.
3. Eventually a kind of rough list begins to form in the SBR which classifies characters by levels of power. From there, members debate more specific matchups and look for critical weaknesses or strengths that could effect a character's placement in the final list. We get very, very specific here and cover a lot of tiny little details. From here, we get a better idea of which characters really stand out at each level.
4. Once we've gone through this entire process several times, taking into account recent tournament results and new tricks and tactics, a moderator calls for the first vote. Members of the SBR vote on the number of tiers and which characters fall into those tiers. A moderator will collect those votes and publish a first draft of the list. This first draft absolutely settles the issue of how many different tiers characters will be placed into.
5. A second vote is called, this time with the number of tiers set. Members then get to vote which characters will fall into the tiers. The votes are tallied and a final list is compiled. This is the list you see published by a mod.
6. Periodically this process is repeated in the Back Room and the tier list is adjusted to reflect the current metagame. For instance, Ice Climbers climbed a few tiers when some of their more advanced techniques were discovered. To the contrary, the Luigi game didn't evolve as much as the rest of the the cast, so he gradually sunk down a tier.
Obviously, tiers can not be absolute, because we continue to learn more about the game all the time. However, if you look at the current SBR Tier List, you can see that it is very similar to the one we've been working from about 2004. I think its clear that the SBR has consistently made accurate lists.
All of that said, if you want to have a hand in the creation of the SBR Tier List for Brawl, then get involved in the community, host tournaments and/or become one of the best players in the country. Only the members that make the biggest contributions get invited into the room. If you want to make sure that your favorite character gets represented well, make sure to post all your tricks and videos and compete regularly in tournaments to demonstrate just how great he/she/it is in competitive play.