If someone faps to Kushinada... eh I won't be judgemental.
For Hades, I too have her as sub, Awakened even. The reason being her abilities all have long cooldowns, so she isn't too reliable - but if anything goes wrong, specially on a long, dramatic, battle, she comes from the bench to support the team with her Blind, Sleep, Atk and Combo Down, Def Up (cmon, 2 turns duration on a 8T CD?).