Let me start by saying that I love Mariah Carey. Her songs are amazing and she is one of the nicest celebrities I know. She's probably and will always be the most successful female singer in the United States.
But Mariah has never had much of an influence. I saw some people voting for her in the Queen of Pop poll and I go like

Mariah's a great vocalist but she has done
nothing groundbreaking, innovative or different. Her albums are bland - typical pop/R&B albums with really very little depth. She sings primarily about heartbreak, love and boys.
So what is it about Mariah Carey that makes her the Queen of Pop? Her #1s? Really? #1s? Even you know you're desperate if you bring up her success because charts and numbers don't make the queen - impact, influence, longevity and critical acclaim make the queen.
Oh, and yes, I've listened to most of her songs. Butterfly was amazing but did it break any new ground?