There is a lot of debate about the SSB:M Tier but this is pretty much accurate: NEW!
=Top=
Shiek
Fox ^
Marth
=Upper=
Falco
Peach
Captain Falcon ^
Samus ^
Jigglypuff ^
=High=
Gannondorf
Mario
Dr. Mario
Luigi
=Mid=
Link
Pikachu
Ice Climbers
Roy
Zelda
Young Link
Yoshi
=Lower=
Ness
Donkey Kong
Kirby
Mr. Game&Watch ^
Mewtwo
=Bottom=
Bowser
Pichu
This is the new tier list. The ^ indicates an upwards move.
The concept of a tier is this:
Some characters are fundamentally better than others, they are slightly unbalanced. This gives them an advantage over all character who are under them in the tier. This does NOT mean that a great Bowser won't beat a bad Sheik! It simply means that if two players are EQUAL, one uses Bowser and one uses Sheik, the player who uses Sheik will win easily.
Tiers effect all levels of play and are simply mistakes. If you find out your favourite character is low on the tiers, you shouldn't be upset and If you beat your friends with a low tier character, it does NOT disprove tiers.