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.
Wolverine’s rapid regeneration powers allow him to bounce back from almost every type of bodily wound on the condition that his head remains firmly attached to his shoulders. Nevertheless, the time of each healing is understandably proportionate to the severity of the injury. His body is also immune to most poisons, drugs, and diseases; his agility, reflexes, and senses are similarly enhanced.
The Black Panther, however, wields enhanced strength and senses thanks to special heart-shaped herbs reserved solely for the post. The suit, which has changed in a variety of ways over the years, also features Vibranium enhancements that absorb impact, making him less susceptible to physical blows or gunshots. More concentrated Vibranium pads in the feet and hands allow for easier climbing.
But with all this said I'd say Black Panther wins IMO.
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Black panther's claws can delay wolverine's regeneration and break his bones as well.
Here is an self-explanation of his claws by T'chala.
Remember Logan's even competitor sabretooth? he does not seem impressive against a Wakandan guy.
In my opinion, despite anti-metal claws black panther would not be able to kill Logan, so if fight is for death wolverine won't loose. In any other cases black panther wins 10 out of 10.
P.s "wolverine fought against hulk" is not a convincing argument. That happened several times, because they both were popular characters, probably best sellers after spider-man and the writers satisfied fan demands. Beating Mephisto (Black panther did) is way greater feat than defeating hulk 2 times out of 5.