Madonna annoys most people, including me. Mariah has never had actual controversy in her career besides some random 2001 mess and her vocals being off-key once in a while. + she has a respectable & amazing discography.
There are universities that study Madonnas career under femanism courses, there are performances on Broadway about madonnas life. She's a permanent fixture in pop culture history in the US and everywhere else.
Meanwhile Mariah features in weight loss adds and works on reality TV.
Musically anyone is able to think of a Madonna song off the top of their heads, meanwhile it's difficult to even remember which songs of Mariah's wernt to number 1.
Madonna is known for changing the game with albums like ray of light, erotica, like a prayer. Mariah has never had an album that is musically diverse. It's all generic.
But hey, don't take my word for it. Ask Mariah. There's a reason why she constantly tells everyone she's the greatest selling female artist, even though she isn't she wants the kind of respect that comes with being Madonna. That why she pretends to be things Madonna actually is.