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.
Firstly, Steve can block attacks from Scott by using his shield (Avengers vs X-men, 2012)
Secondly, Steve physically overpowers Cyclops, just because of Super Solider Serum.
I am not sure whose intelligence is better, but I would say Cap. He made a plan beat Builders (Infinity, 2018)
Steve has way better combat skills (no explaining needed).
Steve's durability is better, too. We saw them fighting in comics. Steve got nearer by his shield and beaten him. So I think Scott can't beat Steve.