Soundness, in your opinion, what are the percentages of the factors that are required in a BBing contest?
I assume you're asking what percentage of winning depends on the performance of the skill (posing) as opposed to your build...
It would vary slightly, depending on how good an individual bodybuilder is at posing. For instance, someone can obviously make themselves look better than someone who is built better with excellent posing skills... For example, Arnold was master at hiding his wide waist and making it appear narrower by twisting.
If I were to guess, on average I'd say your build is 80% of why you win, your posing is about 20%.

Maybe at most 70/30. So you can make up a little bit of ground, but not a lot. Of course this is an estimate, but this certainly means it's not a sport. In order for it to be a sport, winning would have to depend on posing
100%.
The ratio is actually very very close to a beauty pageant. It's just that in a beauty pageant you're portraying facial muscles, attitude, voice, etc... rather than biceps, lats, etc... Obviously if you look like a fuckin scary and go to a beauty pageant you'll look like a fool no matter how good you talk or smile, just like if you go to a bodybuilding show looking like a fuckin slob you'll look like a fool no matter how good you are at posing.