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.
High level Metahumans.
She Hulk is a traditional superhero while Prince Namor is the very first antihero created in 1939.
Bouth are very strong and may lift several thousend perhaps even million tons of weight.
In the ocean Namors strength is concidered unmatched and he is capable of lifting handling an ocean liner.
In the past he even knocked out the incredible Hulk something probably not possible now days.
The Green behemoth became more popular and his power grew exponentially while Namor is rather anonymous.
She Hulk and Namor got limited versatility and is dependent of the incredible superhuman strength.
Bouth are very durable and may sustain military weapons and attacks from powerful adversaries like Hulk, Sentry or Thanos.
Namor is a Mutant and got the ability to fly an advantage against She Hulk who is limited to the ground.
Of course Namor may also breath in his home environment the sea, in the water he would definitely be victorious.
This battle is out of the water and on the ground but Namor is moist and at his most powerful in this environment.
A fist fight between She Hulk and Namor will be very close but i think the Avenging son will be the winner in a very close battle.
And while Namor gets crushed afterwards, Thanos called him a worthy adversary.
Meanwhile Thanos put She-Hulk in a coma.