In the US (the only market that matters for these American popstars), Mariah (Almost) always wins.
Mariah Carey was bigger than LAP (in the US)
Emotions was bigger than Erotica
MB was bigger than Bedtime Stories
Butterfly was about the same as Ray of Light
CB was bigger than American Life
TEOM was bigger than COAD
E=MC2 was bigger than HC
MOAIA was bigger than MDNA
MIAM was bigger than RH
#Beautiful went Platinum & Peaked at #15 whereas no Madonna single will ever hit that kind of stride without her impending death being attached to it.
And along with that, Mariah Carey is guaranteed to have a top 40 hit single every year to infinityyyyyy
King of the World