How would you rank A Class, B class, C class fighters?

[Dodger07]

What various levels would you rank current fighters atm? For example for certain fighters I would have:

A+ fighters: Floyd, Ward, Rigondeaux

A fighters: Manny, Wlad, Bradley, Marquez

A- fighters: Cotto, BHop

B+ fighters: Froch, Canelo, Lara, GGG, Adonis, Kovalev, Mikey, Porter, Thurman

B: fighters: Donaire, Danny, Lucas, Maidana, Mares, Trout

B- fighters: Broner, Khan, Alexander, Guerrero, Provodnikov, Algieri

C fighters: Rios, Alvarado, Angulo, Paulie, Berto, Chavez jr, stevens