I wanted to take Harpy Eda at first, but I decided that taking Eda from season 1 when she still had her magic abilities so it would be fair against Belos, who was using artificial and glyph magic, and let`s keep in mind that due to the curse Eda`s powers was weakened, so it was sort of her prime.

Offense

0-1: Eda

Defence

1-1: Belos

IQ/BIQ

3-1: Belos

Abilities

4-1: Belos

Experience/Knowledge

6-1: Belos

Skills

7-1: Belos

Stamina/Agility

7-3: Eda

Attack speed

7-4: Eda

The Attack Potency (AP)/Destructive Capacity (DC)

7-6: Eda

Weapons/Tools

8-7: Draw

Durability/Endurance

10-7: Belos

HAX

11-7: Belos

Feats

12-7: Belos

Reflexes/Flexibility

12-9: Eda

Strategy

13-9: Belos

Belos wins (Mid-High difficulty; wrire you opinions)