Someone made a F-Air tier. I'll do my own!
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
(And with my own reasons!)
God Tier
C. Falcon (KNEE!) (Damage, knockback, Semi-Semi-Spikage) (...And sound effect and electricity...)
Sheik (Semi-Spikage, quickness)
Marth (Comboability, super-quickness, Short-Ho Double Fair)
High Tier
Ganondorf (FIST!) (Damage, knockback)
Dr. Mario (FIST!) (Damage, knockback)
Luigi (Quickness, knockback)
Mewtwo (Speed, damage, knockback, comboability)
Jigglypuff (Comboability, WoP)
Zelda (Knockback, speed, damage)
TIE: Yoshi, Mario (Meteor, knockback)
Bowser (Speed, knockback, damage)
Middle Tier
Mr. Game & Watch (Speed, knockback)
Ice Climbers (Meteor, damage)
TIE: Y. Link, Link (Knockback, speed)
DK (Knockback, Meteor, damage)
TIE: Falco, Fox (Speed, knockback, comboability)
Low Tier
Peach (Knockback)
Samus (Multiple hits)
Ness (Multiple hits)
Kirby (Multiple hits, knockback)
Bottom Tier
Pikachu (...)
Pichu (..............................)
I guess everyone agrees that Pichu and Pikachu have horrible F-Airs.