I used previous World Martial Arts Tournament winners to get this list started. Since they can provide a "base" power level for us normal humans. So that includes Hercule and Master Roshi. Unlike most lists i also added in characters from Dragonball GT.
list ordered by
1
140 60
WhisDragonball Z
2
41 7
Son Goku added Vegito
3
110 57
Birus
4
114 61
Son GokuDragon Ball Z Kai, Dragon Ball Z, Dragon Ball