The following list indicates which character belongs to which Ultra Combo W scaling tier.

60% Tier
Akuma
Cammy
Decapre
Dhalsim
Fei Long
Hakan
Hugo
Rose
T. Hawk
Zangief

75% Tier
Abel
Adon
Balrog (Boxer)
Blanka
Chun-Li
Cody
C. Viper
Dan
Dee Jay
Dudley
E. Honda
Elena
El Fuerte
Evil Ryu
Gen
Gouken
Guile
Guy
Ibuki
Juri
Ken
Makoto
M. Bison (Dictator)
Oni
Poison
Rolento
Rufus
Ryu
Sagat
Sakura
Seth
Vega (Claw)
Yang
Yun