I browse this topic mostly often, and what amazes me is how much random people's tier lists differ. I typically just glance over them, find 4 or 5 glaring mistakes, and I am quickly disinterested. Why don't people read through 30 or 40 pages of this discussion THEN post one? It's practically impossible to determine a tier list by yourself, you need to hear other opinions and pay close attention to tournament results. You can't just play a character a little and think that he's low quality. I often think this, but that's why I head over to this specific character's forum, and read up on the character, and watch some of the 'top' players to see where their meta game is currently at. I'm often surprised how much potential certain characters have that I overlooked.
I understand everything is up for interpretation, but for the most part, many basic things are agreed upon, (G&W > Dedede seems mostly agreed upon at the moment, for example). So why do I see characters grossly misplaced? It wastes the time of others who quote the tier list, and correct it. Everyone is entitled to their own opinion, but please just make it an educated guess, not a gut feeling.
If you happen to be reading this, and in at some point in the future plan on posting a tier list of your own (great! that's what this topic is for) PLEASE do a little research. Read through this topic. Go look at some tournament results. Read every single character discussion forum. (Who do a lot of characters have trouble against? What characters can gimp others? What are some of the more useful techniques?)
I feel like I know at least as much as the average person posting in this thread, if not more, but I'm not even considering posting a tier list. Why? Because I haven't done the research. I know ICs have sweet grab capabilities, but I've never really watched that much of them, nor have I seen tournament videos with them in it, so how could in my right mind put them anywhere on the list? I don't know which characters they are better than, or worse than.
Also, if you are really lazy, you could at least get a general feel for where characters are grouped, then bull**** the rest. (Ex: Snake, wolf, marth, falco, g&w are all going to be top, or maybe high; Falcon is going to be near the bottom) That way, even though you still aren't knowledgeable enough to post a tier list, at least it's reasonable enough for others to look through and think about, and perhaps generate some positive discussion, as opposed to "Rob shouldn't be in low tier, jiggs shouldn't be high" obvious, but true comments.
Ugh, long rant, sorry. The idea of this post is to trim this topic down (it moves very quickly) to mostly discussion about certain characters and who they are better or worse than, so people can get a good idea. Every once and a while, someone should take their time and put together a reasonable list so the rest of us can critique. I don't want random people who are curious how close they are to guessing the quality of different characters to just spend 10 minutes and guess.
Thank you, and have a nice day.