Strength
STR 10: (Average adult)
STR 12: (Athlete)
STR 14: (Heavy lifter)
STR 16: (World-class)
STR 18: (One in a century)
STR 20: (Peak human) [ex:Captain America]
Intelligence
INT 10: (Average adult)
INT 12: (Bright)
INT 14: (Prodigy)
INT 16: (Genius)
INT 18: (One in a century)
INT 20: (Peak human) [ex:Peter Parker]
Defense
Only this stat is way beyond humans, as humans have no defense whatsoever.
Def 1: (Unarmored)
Def 3: (Padded)
Def 6: (Hide armor)
Def 9: (Leather armor)
Def 12: (Mail armor)
Def 15: (Full plate)
Def 18: (Light vehicle)
Def 20: (Tank armor/Dragon scales)
Magic
Mag 1: (Wizard child)
Mag 3: (First year)
Mag 6: (O.W.L.)
Mag 9: (N.E.W.T.)
Mag 12: (Auror)
Mag 14: (Hogwarts teacher)
Mag 16: (Grand Sorcerer)
Mag 18: (Supreme) [ex:Dumbledore]
Mag 20: (Legend) [ex:Merlin]
Control
D (First year)
C- (Third year)
C+ (O.W.L.)
B- (N.E.W.T.)
A- (Hogwarts teacher)
S (Dumbledore)