Wulfy's tier list v2 (it needed it since I was sleep deprived originally)
S: Meta Knight, Snake, Falco, Diddy Kong
A: Marth, Ice Climbers, King Dedede, Wario, Mr. Game & Watch, Pikachu, Olimar
B: R.O.B., Kirby, Pit, Lucario, Toon Link, Shiek/Zelda, Zero Suit Samus, Donkey Kong, Peach
C: Luigi, Fox, Mario, Wolf, Pokémon Trainer, Sonic
D: Bowser, Ness, Lucas, Ike
E: Yoshi, Samus
F: Link, Jigglypuff, Captain Falcon, Ganon
Changes:
S tier: No change necessary. All these characters are great. I would have to say Falco is definitely over Diddy.
A tier: First, Wario isn't S tier and never was (though I admit that is mostly opinion, but even a good Wario never looked higher than Falco or Diddy and after Diddy, I see very little S-tier material.) Marth was originally behind Ice climbers when I made this, but as someone said above, **** ability is second to safety at higher levels of play, so I moved IC down from top of A tier to second best there. Note, I include Shiek/Zelda as one person, and after having seen some Japanese players with Shiek (along with stealth3654's shiek against kismet at a recent tournament), I simply see the argument for putting Shiek quite high. I will admit that A-tier may be stretching it a bit far (particularly mid a-tier), but overall, I think my over estimation makes up for many player's under estimation of their abilities as a character. Mr. G&W deserves A-tier still, Pikachu's **** is still amazing, and Olimar still holds to his current abilities. Generally, they stay.
B tier: R.O.B. and Kirby are both great, but I don't see them competing well with most of the A tier line up. ergo, they move down where they will hold a decently even match. Most of B should be unsurprising
C tier: All of these characters belong here. Mario is underestimated, and the rest were pretty much spot on. Also, watch a match of reflex as PT and tell me he isn't mid tier. He's abusive when used right and generally undiscovered.
D tier: I had problems here... I want to say all of these character are...well...equally bad. Bowser's on top for sure, Ness is generally better than Lucas (or has more success stories, to be fair) and I think Ness has better odds against Lucas, but I could be mistaken. I won't debate near as much for this level as I will any other.
E tier: As much as I love Yoshi, he just...belongs here. On one hand, Yoshi can combo better than any character on this list. Not tech chase, combo. Unfortunately, his learning curve is exponential and learning the character is about as rewarding as obtaining maple syrup. Sure, it's delicious, but how much patience do you really have? Oh, and I will take flack for this but...um...Samus sucks. I know I can't beat the best Samus player or probably the top 50. I'm not saying I ever will. I will say that Samus is super campy, and in general, she can't do anything about almost anyone above her *assumes the other person is on the same playing level as her player.*
F tier: *sighs* the order could pretty much be random so long as Ganon is last. I like Jiggly less than Link, but Link can't compete. I love Link, and he can probably do okay against Falcon so Link is above him, and then there's Ganon.. Yea...sorry, ganon's last.