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.
has better feats
but if we consider solo battles
odin can beat him with his weaknesses ( thunder and powerful magics and lights ) told by dr strange
odin can even use power cosmic by channeling himself ( he said himself in thor annual and give his son enough cosmic force to heal and power up him )
thats another weakness of knull
so odin has more chance
and if you compare they're weapons
odin sword is more dangerous than all black
because if the owner of it desire the sword can end the universe itself while all black was weaker in the hand of knull than gorr ( it couldn't even kill none of thors when entered their body )
and also destroyer armor has powered by the force of all skyfathers of the universe + odin
and dont forget Odin >>> All-father thor
allfather thor was going to beat knull and knocked him out before the celestials came