The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
Speed/Agility, Mace Windu
Intelligence/IQ/BIQ, Count Dooku
Experience, Count Dooku
Force power/Abilities, Count Dooku
Dueling/Combat,-equal
Offence, Mace Windu
Defence, Count Dooku
Potential, Count Dooku
Count Dooku 10 Points, Mace Windu 7 Points
Mace struggled against a magnetised Grievous where as Dooku was the one who trained him.
Dooku was also the master of Makashi (the lightsaber duelling form). All this gives him good odds against Mace Windu.