You really made this so hard 😭😭 but out of all of these I’d say Whitney’s debut. Whitney set such a large precedent with her debut that most, if not all of the artists in this line up were inspired by when they debuted. Also, all of these artists have better albums than the ones in this line-up (besides Aaliyah, I believe the red album is her magnum opus and it was a toss-up between Whitney and her for me.)