RD (QB) vs. RD (Commonapp)

So I understand all the benefits of getting matched to a partner school, but what is the benefit of applying RD through QB instead of just the Commonapp? Is there any benefit? I say this because I have one AP exam grade that is not as good as the others, and the QB application asks for ALL standardized test results where in the Commonapp, I can choose to reveal my AP exam scores. Please help because many of the colleges I wish to apply to are partner schools of QB, and I cannot decide which app to use.

One low AP exam score won’t matter, even at the most selective institutions (AP exam scores in applications in general seem to be almost negligible because they tend to be so reliant on which teacher you had.) There’s the benefit of being able to have a more detailed and personal application than most applicants will have when they are just applying through the Commonapp, and being Questbridge does seem to give a small boost in admissions (in no way is it a guarantee of admission, even with top stats and applying at dozens of schools, always have a quality safety school option.)

@Blueoncemoon thank you!